668528642

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{263}}^1\times {\mathrm{443}}^1$

素因数の和:878

約数の個数: 32

約数和(自身を含む): 1069009920

約数和(自身を除く): 400481278

約数列:

[1, 2, 19, 38, 151, 263, 302, 443, 526, 886, 2869, 4997, 5738, 8417, 9994, 16834, 39713, 66893, 79426, 116509, 133786, 233018, 754547, 1270967, 1509094, 2213671, 2541934, 4427342, 17592859, 35185718, 334264321, 668528642]

約数ペア:

[(1, 668528642), (2, 334264321), (19, 35185718), (38, 17592859), (151, 4427342), (263, 2541934), (302, 2213671), (443, 1509094), (526, 1270967), (886, 754547), (2869, 233018), (4997, 133786), (5738, 116509), (8417, 79426), (9994, 66893), (16834, 39713)]