13042640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12541}}^1$

素因数の和:12567

約数の個数: 40

約数和(自身を含む): 32659368

約数和(自身を除く): 19616728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 12541, 25082, 50164, 62705, 100328, 125410, 163033, 200656, 250820, 326066, 501640, 652132, 815165, 1003280, 1304264, 1630330, 2608528, 3260660, 6521320, 13042640]

約数ペア:

[(1, 13042640), (2, 6521320), (4, 3260660), (5, 2608528), (8, 1630330), (10, 1304264), (13, 1003280), (16, 815165), (20, 652132), (26, 501640), (40, 326066), (52, 250820), (65, 200656), (80, 163033), (104, 125410), (130, 100328), (208, 62705), (260, 50164), (520, 25082), (1040, 12541)]