156976710640

素因数分解:

$2^4\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2390023}}^1$

素因数の和:2390857

約数の個数: 40

約数和(自身を含む): 365415549408

約数和(自身を除く): 208438838768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 821, 1642, 3284, 4105, 6568, 8210, 13136, 16420, 32840, 65680, 2390023, 4780046, 9560092, 11950115, 19120184, 23900230, 38240368, 47800460, 95600920, 191201840, 1962208883, 3924417766, 7848835532, 9811044415, 15697671064, 19622088830, 31395342128, 39244177660, 78488355320, 156976710640]

約数ペア:

[(1, 156976710640), (2, 78488355320), (4, 39244177660), (5, 31395342128), (8, 19622088830), (10, 15697671064), (16, 9811044415), (20, 7848835532), (40, 3924417766), (80, 1962208883), (821, 191201840), (1642, 95600920), (3284, 47800460), (4105, 38240368), (6568, 23900230), (8210, 19120184), (13136, 11950115), (16420, 9560092), (32840, 4780046), (65680, 2390023)]