20586480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2767}}^1$

素因数の和:2814

約数の個数: 80

約数和(自身を含む): 65900544

約数和(自身を除く): 45314064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2767, 3720, 5534, 7440, 8301, 11068, 13835, 16602, 22136, 27670, 33204, 41505, 44272, 55340, 66408, 83010, 85777, 110680, 132816, 166020, 171554, 221360, 257331, 332040, 343108, 428885, 514662, 664080, 686216, 857770, 1029324, 1286655, 1372432, 1715540, 2058648, 2573310, 3431080, 4117296, 5146620, 6862160, 10293240, 20586480]

約数ペア:

[(1, 20586480), (2, 10293240), (3, 6862160), (4, 5146620), (5, 4117296), (6, 3431080), (8, 2573310), (10, 2058648), (12, 1715540), (15, 1372432), (16, 1286655), (20, 1029324), (24, 857770), (30, 686216), (31, 664080), (40, 514662), (48, 428885), (60, 343108), (62, 332040), (80, 257331), (93, 221360), (120, 171554), (124, 166020), (155, 132816), (186, 110680), (240, 85777), (248, 83010), (310, 66408), (372, 55340), (465, 44272), (496, 41505), (620, 33204), (744, 27670), (930, 22136), (1240, 16602), (1488, 13835), (1860, 11068), (2480, 8301), (2767, 7440), (3720, 5534)]