256289072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{4909}}^1$

素因数の和:5181

約数の個数: 40

約数和(自身を含む): 536996880

約数和(自身を除く): 280707808

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 251, 502, 1004, 2008, 3263, 4016, 4909, 6526, 9818, 13052, 19636, 26104, 39272, 52208, 63817, 78544, 127634, 255268, 510536, 1021072, 1232159, 2464318, 4928636, 9857272, 16018067, 19714544, 32036134, 64072268, 128144536, 256289072]

約数ペア:

[(1, 256289072), (2, 128144536), (4, 64072268), (8, 32036134), (13, 19714544), (16, 16018067), (26, 9857272), (52, 4928636), (104, 2464318), (208, 1232159), (251, 1021072), (502, 510536), (1004, 255268), (2008, 127634), (3263, 78544), (4016, 63817), (4909, 52208), (6526, 39272), (9818, 26104), (13052, 19636)]