25678640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24691}}^1$

素因数の和:24717

約数の個数: 40

約数和(自身を含む): 64297968

約数和(自身を除く): 38619328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 24691, 49382, 98764, 123455, 197528, 246910, 320983, 395056, 493820, 641966, 987640, 1283932, 1604915, 1975280, 2567864, 3209830, 5135728, 6419660, 12839320, 25678640]

約数ペア:

[(1, 25678640), (2, 12839320), (4, 6419660), (5, 5135728), (8, 3209830), (10, 2567864), (13, 1975280), (16, 1604915), (20, 1283932), (26, 987640), (40, 641966), (52, 493820), (65, 395056), (80, 320983), (104, 246910), (130, 197528), (208, 123455), (260, 98764), (520, 49382), (1040, 24691)]