256912500

素因数分解:

$2^2\times 3^1\times 5^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:93

約数の個数: 288

約数和(自身を含む): 881943552

約数和(自身を除く): 625031052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 25, 26, 30, 31, 34, 39, 50, 51, 52, 60, 62, 65, 68, 75, 78, 85, 93, 100, 102, 124, 125, 130, 150, 155, 156, 170, 186, 195, 204, 221, 250, 255, 260, 300, 310, 325, 340, 372, 375, 390, 403, 425, 442, 465, 500, 510, 527, 620, 625, 650, 663, 750, 775, 780, 806, 850, 884, 930, 975, 1020, 1054, 1105, 1209, 1250, 1275, 1300, 1326, 1500, 1550, 1581, 1612, 1625, 1700, 1860, 1875, 1950, 2015, 2108, 2125, 2210, 2325, 2418, 2500, 2550, 2635, 2652, 3100, 3125, 3162, 3250, 3315, 3750, 3875, 3900, 4030, 4250, 4420, 4650, 4836, 4875, 5100, 5270, 5525, 6045, 6250, 6324, 6375, 6500, 6630, 6851, 7500, 7750, 7905, 8060, 8125, 8500, 9300, 9375, 9750, 10075, 10540, 10625, 11050, 11625, 12090, 12500, 12750, 13175, 13260, 13702, 15500, 15810, 16250, 16575, 18750, 19375, 19500, 20150, 20553, 21250, 22100, 23250, 24180, 24375, 25500, 26350, 27404, 27625, 30225, 31620, 31875, 32500, 33150, 34255, 37500, 38750, 39525, 40300, 40625, 41106, 42500, 46500, 48750, 50375, 52700, 53125, 55250, 58125, 60450, 63750, 65875, 66300, 68510, 77500, 79050, 81250, 82212, 82875, 96875, 97500, 100750, 102765, 106250, 110500, 116250, 120900, 121875, 127500, 131750, 137020, 138125, 151125, 158100, 159375, 162500, 165750, 171275, 193750, 197625, 201500, 205530, 212500, 232500, 243750, 251875, 263500, 276250, 290625, 302250, 318750, 329375, 331500, 342550, 387500, 395250, 411060, 414375, 487500, 503750, 513825, 552500, 581250, 604500, 637500, 658750, 685100, 690625, 755625, 790500, 828750, 856375, 988125, 1007500, 1027650, 1162500, 1259375, 1317500, 1381250, 1511250, 1646875, 1657500, 1712750, 1976250, 2055300, 2071875, 2518750, 2569125, 2762500, 3022500, 3293750, 3425500, 3778125, 3952500, 4143750, 4281875, 4940625, 5037500, 5138250, 6587500, 7556250, 8287500, 8563750, 9881250, 10276500, 12845625, 15112500, 17127500, 19762500, 21409375, 25691250, 42818750, 51382500, 64228125, 85637500, 128456250, 256912500]

約数ペア:

[(1, 256912500), (2, 128456250), (3, 85637500), (4, 64228125), (5, 51382500), (6, 42818750), (10, 25691250), (12, 21409375), (13, 19762500), (15, 17127500), (17, 15112500), (20, 12845625), (25, 10276500), (26, 9881250), (30, 8563750), (31, 8287500), (34, 7556250), (39, 6587500), (50, 5138250), (51, 5037500), (52, 4940625), (60, 4281875), (62, 4143750), (65, 3952500), (68, 3778125), (75, 3425500), (78, 3293750), (85, 3022500), (93, 2762500), (100, 2569125), (102, 2518750), (124, 2071875), (125, 2055300), (130, 1976250), (150, 1712750), (155, 1657500), (156, 1646875), (170, 1511250), (186, 1381250), (195, 1317500), (204, 1259375), (221, 1162500), (250, 1027650), (255, 1007500), (260, 988125), (300, 856375), (310, 828750), (325, 790500), (340, 755625), (372, 690625), (375, 685100), (390, 658750), (403, 637500), (425, 604500), (442, 581250), (465, 552500), (500, 513825), (510, 503750), (527, 487500), (620, 414375), (625, 411060), (650, 395250), (663, 387500), (750, 342550), (775, 331500), (780, 329375), (806, 318750), (850, 302250), (884, 290625), (930, 276250), (975, 263500), (1020, 251875), (1054, 243750), (1105, 232500), (1209, 212500), (1250, 205530), (1275, 201500), (1300, 197625), (1326, 193750), (1500, 171275), (1550, 165750), (1581, 162500), (1612, 159375), (1625, 158100), (1700, 151125), (1860, 138125), (1875, 137020), (1950, 131750), (2015, 127500), (2108, 121875), (2125, 120900), (2210, 116250), (2325, 110500), (2418, 106250), (2500, 102765), (2550, 100750), (2635, 97500), (2652, 96875), (3100, 82875), (3125, 82212), (3162, 81250), (3250, 79050), (3315, 77500), (3750, 68510), (3875, 66300), (3900, 65875), (4030, 63750), (4250, 60450), (4420, 58125), (4650, 55250), (4836, 53125), (4875, 52700), (5100, 50375), (5270, 48750), (5525, 46500), (6045, 42500), (6250, 41106), (6324, 40625), (6375, 40300), (6500, 39525), (6630, 38750), (6851, 37500), (7500, 34255), (7750, 33150), (7905, 32500), (8060, 31875), (8125, 31620), (8500, 30225), (9300, 27625), (9375, 27404), (9750, 26350), (10075, 25500), (10540, 24375), (10625, 24180), (11050, 23250), (11625, 22100), (12090, 21250), (12500, 20553), (12750, 20150), (13175, 19500), (13260, 19375), (13702, 18750), (15500, 16575), (15810, 16250)]