20927790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:634

約数の個数: 96

約数和(自身を含む): 60592896

約数和(自身を除く): 39665106

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 31, 39, 45, 62, 65, 78, 90, 93, 117, 130, 155, 186, 195, 234, 279, 310, 390, 403, 465, 558, 577, 585, 806, 930, 1154, 1170, 1209, 1395, 1731, 2015, 2418, 2790, 2885, 3462, 3627, 4030, 5193, 5770, 6045, 7254, 7501, 8655, 10386, 12090, 15002, 17310, 17887, 18135, 22503, 25965, 35774, 36270, 37505, 45006, 51930, 53661, 67509, 75010, 89435, 107322, 112515, 135018, 160983, 178870, 225030, 232531, 268305, 321966, 337545, 465062, 536610, 675090, 697593, 804915, 1162655, 1395186, 1609830, 2092779, 2325310, 3487965, 4185558, 6975930, 10463895, 20927790]

約数ペア:

[(1, 20927790), (2, 10463895), (3, 6975930), (5, 4185558), (6, 3487965), (9, 2325310), (10, 2092779), (13, 1609830), (15, 1395186), (18, 1162655), (26, 804915), (30, 697593), (31, 675090), (39, 536610), (45, 465062), (62, 337545), (65, 321966), (78, 268305), (90, 232531), (93, 225030), (117, 178870), (130, 160983), (155, 135018), (186, 112515), (195, 107322), (234, 89435), (279, 75010), (310, 67509), (390, 53661), (403, 51930), (465, 45006), (558, 37505), (577, 36270), (585, 35774), (806, 25965), (930, 22503), (1154, 18135), (1170, 17887), (1209, 17310), (1395, 15002), (1731, 12090), (2015, 10386), (2418, 8655), (2790, 7501), (2885, 7254), (3462, 6045), (3627, 5770), (4030, 5193)]