661881000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:713

約数の個数: 256

約数和(自身を含む): 2329067520

約数和(自身を除く): 1667186520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 25, 30, 31, 33, 40, 44, 50, 55, 60, 62, 66, 75, 88, 93, 100, 110, 120, 124, 125, 132, 150, 155, 165, 186, 200, 220, 248, 250, 264, 275, 300, 310, 330, 341, 372, 375, 440, 465, 500, 550, 600, 620, 647, 660, 682, 744, 750, 775, 825, 930, 1000, 1023, 1100, 1240, 1294, 1320, 1364, 1375, 1500, 1550, 1650, 1705, 1860, 1941, 2046, 2200, 2325, 2588, 2728, 2750, 3000, 3100, 3235, 3300, 3410, 3720, 3875, 3882, 4092, 4125, 4650, 5115, 5176, 5500, 6200, 6470, 6600, 6820, 7117, 7750, 7764, 8184, 8250, 8525, 9300, 9705, 10230, 11000, 11625, 12940, 13640, 14234, 15500, 15528, 16175, 16500, 17050, 18600, 19410, 20057, 20460, 21351, 23250, 25575, 25880, 28468, 31000, 32350, 33000, 34100, 35585, 38820, 40114, 40920, 42625, 42702, 46500, 48525, 51150, 56936, 60171, 64700, 68200, 71170, 77640, 80228, 80875, 85250, 85404, 93000, 97050, 100285, 102300, 106755, 120342, 127875, 129400, 142340, 160456, 161750, 170500, 170808, 177925, 194100, 200570, 204600, 213510, 220627, 240684, 242625, 255750, 284680, 300855, 323500, 341000, 355850, 388200, 401140, 427020, 441254, 481368, 485250, 501425, 511500, 533775, 601710, 647000, 661881, 711700, 802280, 854040, 882508, 889625, 970500, 1002850, 1023000, 1067550, 1103135, 1203420, 1323762, 1423400, 1504275, 1765016, 1779250, 1941000, 2005700, 2135100, 2206270, 2406840, 2507125, 2647524, 2668875, 3008550, 3309405, 3558500, 4011400, 4270200, 4412540, 5014250, 5295048, 5337750, 5515675, 6017100, 6618810, 7117000, 7521375, 8825080, 10028500, 10675500, 11031350, 12034200, 13237620, 15042750, 16547025, 20057000, 21351000, 22062700, 26475240, 27578375, 30085500, 33094050, 44125400, 55156750, 60171000, 66188100, 82735125, 110313500, 132376200, 165470250, 220627000, 330940500, 661881000]

約数ペア:

[(1, 661881000), (2, 330940500), (3, 220627000), (4, 165470250), (5, 132376200), (6, 110313500), (8, 82735125), (10, 66188100), (11, 60171000), (12, 55156750), (15, 44125400), (20, 33094050), (22, 30085500), (24, 27578375), (25, 26475240), (30, 22062700), (31, 21351000), (33, 20057000), (40, 16547025), (44, 15042750), (50, 13237620), (55, 12034200), (60, 11031350), (62, 10675500), (66, 10028500), (75, 8825080), (88, 7521375), (93, 7117000), (100, 6618810), (110, 6017100), (120, 5515675), (124, 5337750), (125, 5295048), (132, 5014250), (150, 4412540), (155, 4270200), (165, 4011400), (186, 3558500), (200, 3309405), (220, 3008550), (248, 2668875), (250, 2647524), (264, 2507125), (275, 2406840), (300, 2206270), (310, 2135100), (330, 2005700), (341, 1941000), (372, 1779250), (375, 1765016), (440, 1504275), (465, 1423400), (500, 1323762), (550, 1203420), (600, 1103135), (620, 1067550), (647, 1023000), (660, 1002850), (682, 970500), (744, 889625), (750, 882508), (775, 854040), (825, 802280), (930, 711700), (1000, 661881), (1023, 647000), (1100, 601710), (1240, 533775), (1294, 511500), (1320, 501425), (1364, 485250), (1375, 481368), (1500, 441254), (1550, 427020), (1650, 401140), (1705, 388200), (1860, 355850), (1941, 341000), (2046, 323500), (2200, 300855), (2325, 284680), (2588, 255750), (2728, 242625), (2750, 240684), (3000, 220627), (3100, 213510), (3235, 204600), (3300, 200570), (3410, 194100), (3720, 177925), (3875, 170808), (3882, 170500), (4092, 161750), (4125, 160456), (4650, 142340), (5115, 129400), (5176, 127875), (5500, 120342), (6200, 106755), (6470, 102300), (6600, 100285), (6820, 97050), (7117, 93000), (7750, 85404), (7764, 85250), (8184, 80875), (8250, 80228), (8525, 77640), (9300, 71170), (9705, 68200), (10230, 64700), (11000, 60171), (11625, 56936), (12940, 51150), (13640, 48525), (14234, 46500), (15500, 42702), (15528, 42625), (16175, 40920), (16500, 40114), (17050, 38820), (18600, 35585), (19410, 34100), (20057, 33000), (20460, 32350), (21351, 31000), (23250, 28468), (25575, 25880)]