81880500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:84

約数の個数: 288

約数和(自身を含む): 287763840

約数和(自身を除く): 205883340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 19, 20, 25, 26, 30, 34, 38, 39, 50, 51, 52, 57, 60, 65, 68, 75, 76, 78, 85, 95, 100, 102, 114, 125, 130, 150, 156, 169, 170, 190, 195, 204, 221, 228, 247, 250, 255, 260, 285, 300, 323, 325, 338, 340, 375, 380, 390, 425, 442, 475, 494, 500, 507, 510, 570, 646, 650, 663, 676, 741, 750, 780, 845, 850, 884, 950, 969, 975, 988, 1014, 1020, 1105, 1140, 1235, 1275, 1292, 1300, 1326, 1425, 1482, 1500, 1615, 1625, 1690, 1700, 1900, 1938, 1950, 2028, 2125, 2210, 2375, 2470, 2535, 2550, 2652, 2850, 2873, 2964, 3211, 3230, 3250, 3315, 3380, 3705, 3876, 3900, 4199, 4225, 4250, 4420, 4750, 4845, 4875, 4940, 5070, 5100, 5525, 5700, 5746, 6175, 6375, 6422, 6460, 6500, 6630, 7125, 7410, 8075, 8398, 8450, 8500, 8619, 9500, 9633, 9690, 9750, 10140, 11050, 11492, 12350, 12597, 12675, 12750, 12844, 13260, 14250, 14365, 14820, 16055, 16150, 16575, 16796, 16900, 17238, 18525, 19266, 19380, 19500, 20995, 21125, 22100, 24225, 24700, 25194, 25350, 25500, 27625, 28500, 28730, 30875, 32110, 32300, 33150, 34476, 37050, 38532, 40375, 41990, 42250, 43095, 48165, 48450, 50388, 50700, 54587, 55250, 57460, 61750, 62985, 63375, 64220, 66300, 71825, 74100, 80275, 80750, 82875, 83980, 84500, 86190, 92625, 96330, 96900, 104975, 109174, 110500, 121125, 123500, 125970, 126750, 143650, 160550, 161500, 163761, 165750, 172380, 185250, 192660, 209950, 215475, 218348, 240825, 242250, 251940, 253500, 272935, 287300, 314925, 321100, 327522, 331500, 359125, 370500, 401375, 419900, 430950, 481650, 484500, 524875, 545870, 629850, 655044, 718250, 802750, 818805, 861900, 963300, 1049750, 1077375, 1091740, 1204125, 1259700, 1364675, 1436500, 1574625, 1605500, 1637610, 2099500, 2154750, 2408250, 2729350, 3149250, 3275220, 4094025, 4309500, 4816500, 5458700, 6298500, 6823375, 8188050, 13646750, 16376100, 20470125, 27293500, 40940250, 81880500]

約数ペア:

[(1, 81880500), (2, 40940250), (3, 27293500), (4, 20470125), (5, 16376100), (6, 13646750), (10, 8188050), (12, 6823375), (13, 6298500), (15, 5458700), (17, 4816500), (19, 4309500), (20, 4094025), (25, 3275220), (26, 3149250), (30, 2729350), (34, 2408250), (38, 2154750), (39, 2099500), (50, 1637610), (51, 1605500), (52, 1574625), (57, 1436500), (60, 1364675), (65, 1259700), (68, 1204125), (75, 1091740), (76, 1077375), (78, 1049750), (85, 963300), (95, 861900), (100, 818805), (102, 802750), (114, 718250), (125, 655044), (130, 629850), (150, 545870), (156, 524875), (169, 484500), (170, 481650), (190, 430950), (195, 419900), (204, 401375), (221, 370500), (228, 359125), (247, 331500), (250, 327522), (255, 321100), (260, 314925), (285, 287300), (300, 272935), (323, 253500), (325, 251940), (338, 242250), (340, 240825), (375, 218348), (380, 215475), (390, 209950), (425, 192660), (442, 185250), (475, 172380), (494, 165750), (500, 163761), (507, 161500), (510, 160550), (570, 143650), (646, 126750), (650, 125970), (663, 123500), (676, 121125), (741, 110500), (750, 109174), (780, 104975), (845, 96900), (850, 96330), (884, 92625), (950, 86190), (969, 84500), (975, 83980), (988, 82875), (1014, 80750), (1020, 80275), (1105, 74100), (1140, 71825), (1235, 66300), (1275, 64220), (1292, 63375), (1300, 62985), (1326, 61750), (1425, 57460), (1482, 55250), (1500, 54587), (1615, 50700), (1625, 50388), (1690, 48450), (1700, 48165), (1900, 43095), (1938, 42250), (1950, 41990), (2028, 40375), (2125, 38532), (2210, 37050), (2375, 34476), (2470, 33150), (2535, 32300), (2550, 32110), (2652, 30875), (2850, 28730), (2873, 28500), (2964, 27625), (3211, 25500), (3230, 25350), (3250, 25194), (3315, 24700), (3380, 24225), (3705, 22100), (3876, 21125), (3900, 20995), (4199, 19500), (4225, 19380), (4250, 19266), (4420, 18525), (4750, 17238), (4845, 16900), (4875, 16796), (4940, 16575), (5070, 16150), (5100, 16055), (5525, 14820), (5700, 14365), (5746, 14250), (6175, 13260), (6375, 12844), (6422, 12750), (6460, 12675), (6500, 12597), (6630, 12350), (7125, 11492), (7410, 11050), (8075, 10140), (8398, 9750), (8450, 9690), (8500, 9633), (8619, 9500)]