51151240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 139345920

約数和(自身を除く): 88194680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 71, 83, 124, 140, 142, 155, 166, 217, 248, 280, 284, 310, 332, 355, 415, 434, 497, 568, 581, 620, 664, 710, 830, 868, 994, 1085, 1162, 1240, 1420, 1660, 1736, 1988, 2170, 2201, 2324, 2485, 2573, 2840, 2905, 3320, 3976, 4340, 4402, 4648, 4970, 5146, 5810, 5893, 8680, 8804, 9940, 10292, 11005, 11620, 11786, 12865, 15407, 17608, 18011, 19880, 20584, 22010, 23240, 23572, 25730, 29465, 30814, 36022, 41251, 44020, 47144, 51460, 58930, 61628, 72044, 77035, 82502, 88040, 90055, 102920, 117860, 123256, 144088, 154070, 165004, 180110, 182683, 206255, 235720, 308140, 330008, 360220, 365366, 412510, 616280, 720440, 730732, 825020, 913415, 1278781, 1461464, 1650040, 1826830, 2557562, 3653660, 5115124, 6393905, 7307320, 10230248, 12787810, 25575620, 51151240]

約数ペア:

[(1, 51151240), (2, 25575620), (4, 12787810), (5, 10230248), (7, 7307320), (8, 6393905), (10, 5115124), (14, 3653660), (20, 2557562), (28, 1826830), (31, 1650040), (35, 1461464), (40, 1278781), (56, 913415), (62, 825020), (70, 730732), (71, 720440), (83, 616280), (124, 412510), (140, 365366), (142, 360220), (155, 330008), (166, 308140), (217, 235720), (248, 206255), (280, 182683), (284, 180110), (310, 165004), (332, 154070), (355, 144088), (415, 123256), (434, 117860), (497, 102920), (568, 90055), (581, 88040), (620, 82502), (664, 77035), (710, 72044), (830, 61628), (868, 58930), (994, 51460), (1085, 47144), (1162, 44020), (1240, 41251), (1420, 36022), (1660, 30814), (1736, 29465), (1988, 25730), (2170, 23572), (2201, 23240), (2324, 22010), (2485, 20584), (2573, 19880), (2840, 18011), (2905, 17608), (3320, 15407), (3976, 12865), (4340, 11786), (4402, 11620), (4648, 11005), (4970, 10292), (5146, 9940), (5810, 8804), (5893, 8680)]