20495410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4261}}^1$

素因数の和:4318

約数の個数: 32

約数和(自身を含む): 40812912

約数和(自身を除く): 20317502

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4261, 4810, 8522, 21305, 42610, 55393, 110786, 157657, 276965, 315314, 553930, 788285, 1576570, 2049541, 4099082, 10247705, 20495410]

約数ペア:

[(1, 20495410), (2, 10247705), (5, 4099082), (10, 2049541), (13, 1576570), (26, 788285), (37, 553930), (65, 315314), (74, 276965), (130, 157657), (185, 110786), (370, 55393), (481, 42610), (962, 21305), (2405, 8522), (4261, 4810)]