28409290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31219}}^1$

素因数の和:31246

約数の個数: 32

約数和(自身を含む): 62939520

約数和(自身を除く): 34530230

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 31219, 62438, 156095, 218533, 312190, 405847, 437066, 811694, 1092665, 2029235, 2185330, 2840929, 4058470, 5681858, 14204645, 28409290]

約数ペア:

[(1, 28409290), (2, 14204645), (5, 5681858), (7, 4058470), (10, 2840929), (13, 2185330), (14, 2029235), (26, 1092665), (35, 811694), (65, 437066), (70, 405847), (91, 312190), (130, 218533), (182, 156095), (455, 62438), (910, 31219)]