20742621000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{991}}^1\times {\mathrm{6977}}^1$

素因数の和:7992

約数の個数: 128

約数和(自身を含む): 64791567360

約数和(自身を除く): 44048946360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 750, 991, 1000, 1500, 1982, 2973, 3000, 3964, 4955, 5946, 6977, 7928, 9910, 11892, 13954, 14865, 19820, 20931, 23784, 24775, 27908, 29730, 34885, 39640, 41862, 49550, 55816, 59460, 69770, 74325, 83724, 99100, 104655, 118920, 123875, 139540, 148650, 167448, 174425, 198200, 209310, 247750, 279080, 297300, 348850, 371625, 418620, 495500, 523275, 594600, 697700, 743250, 837240, 872125, 991000, 1046550, 1395400, 1486500, 1744250, 2093100, 2616375, 2973000, 3488500, 4186200, 5232750, 6914207, 6977000, 10465500, 13828414, 20742621, 20931000, 27656828, 34571035, 41485242, 55313656, 69142070, 82970484, 103713105, 138284140, 165940968, 172855175, 207426210, 276568280, 345710350, 414852420, 518565525, 691420700, 829704840, 864275875, 1037131050, 1382841400, 1728551750, 2074262100, 2592827625, 3457103500, 4148524200, 5185655250, 6914207000, 10371310500, 20742621000]

約数ペア:

[(1, 20742621000), (2, 10371310500), (3, 6914207000), (4, 5185655250), (5, 4148524200), (6, 3457103500), (8, 2592827625), (10, 2074262100), (12, 1728551750), (15, 1382841400), (20, 1037131050), (24, 864275875), (25, 829704840), (30, 691420700), (40, 518565525), (50, 414852420), (60, 345710350), (75, 276568280), (100, 207426210), (120, 172855175), (125, 165940968), (150, 138284140), (200, 103713105), (250, 82970484), (300, 69142070), (375, 55313656), (500, 41485242), (600, 34571035), (750, 27656828), (991, 20931000), (1000, 20742621), (1500, 13828414), (1982, 10465500), (2973, 6977000), (3000, 6914207), (3964, 5232750), (4955, 4186200), (5946, 3488500), (6977, 2973000), (7928, 2616375), (9910, 2093100), (11892, 1744250), (13954, 1486500), (14865, 1395400), (19820, 1046550), (20931, 991000), (23784, 872125), (24775, 837240), (27908, 743250), (29730, 697700), (34885, 594600), (39640, 523275), (41862, 495500), (49550, 418620), (55816, 371625), (59460, 348850), (69770, 297300), (74325, 279080), (83724, 247750), (99100, 209310), (104655, 198200), (118920, 174425), (123875, 167448), (139540, 148650)]