20259304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2347}}^1$

素因数の和:2449

約数の個数: 32

約数和(自身を含む): 41418720

約数和(自身を除く): 21159416

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 104, 166, 332, 664, 1079, 2158, 2347, 4316, 4694, 8632, 9388, 18776, 30511, 61022, 122044, 194801, 244088, 389602, 779204, 1558408, 2532413, 5064826, 10129652, 20259304]

約数ペア:

[(1, 20259304), (2, 10129652), (4, 5064826), (8, 2532413), (13, 1558408), (26, 779204), (52, 389602), (83, 244088), (104, 194801), (166, 122044), (332, 61022), (664, 30511), (1079, 18776), (2158, 9388), (2347, 8632), (4316, 4694)]