20842920

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{919}}^1$

素因数の和:949

約数の個数: 160

約数和(自身を含む): 80150400

約数和(自身を除く): 59307480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 252, 270, 280, 315, 324, 360, 378, 405, 420, 504, 540, 567, 630, 648, 756, 810, 840, 919, 945, 1080, 1134, 1260, 1512, 1620, 1838, 1890, 2268, 2520, 2757, 2835, 3240, 3676, 3780, 4536, 4595, 5514, 5670, 6433, 7352, 7560, 8271, 9190, 11028, 11340, 12866, 13785, 16542, 18380, 19299, 22056, 22680, 24813, 25732, 27570, 32165, 33084, 36760, 38598, 41355, 49626, 51464, 55140, 57897, 64330, 66168, 74439, 77196, 82710, 96495, 99252, 110280, 115794, 124065, 128660, 148878, 154392, 165420, 173691, 192990, 198504, 231588, 248130, 257320, 289485, 297756, 330840, 347382, 372195, 385980, 463176, 496260, 521073, 578970, 595512, 694764, 744390, 771960, 868455, 992520, 1042146, 1157940, 1389528, 1488780, 1736910, 2084292, 2315880, 2605365, 2977560, 3473820, 4168584, 5210730, 6947640, 10421460, 20842920]

約数ペア:

[(1, 20842920), (2, 10421460), (3, 6947640), (4, 5210730), (5, 4168584), (6, 3473820), (7, 2977560), (8, 2605365), (9, 2315880), (10, 2084292), (12, 1736910), (14, 1488780), (15, 1389528), (18, 1157940), (20, 1042146), (21, 992520), (24, 868455), (27, 771960), (28, 744390), (30, 694764), (35, 595512), (36, 578970), (40, 521073), (42, 496260), (45, 463176), (54, 385980), (56, 372195), (60, 347382), (63, 330840), (70, 297756), (72, 289485), (81, 257320), (84, 248130), (90, 231588), (105, 198504), (108, 192990), (120, 173691), (126, 165420), (135, 154392), (140, 148878), (162, 128660), (168, 124065), (180, 115794), (189, 110280), (210, 99252), (216, 96495), (252, 82710), (270, 77196), (280, 74439), (315, 66168), (324, 64330), (360, 57897), (378, 55140), (405, 51464), (420, 49626), (504, 41355), (540, 38598), (567, 36760), (630, 33084), (648, 32165), (756, 27570), (810, 25732), (840, 24813), (919, 22680), (945, 22056), (1080, 19299), (1134, 18380), (1260, 16542), (1512, 13785), (1620, 12866), (1838, 11340), (1890, 11028), (2268, 9190), (2520, 8271), (2757, 7560), (2835, 7352), (3240, 6433), (3676, 5670), (3780, 5514), (4536, 4595)]