64430720

素因数分解:

$2^7\times 5^1\times {\mathrm{100673}}^1$

素因数の和:100692

約数の個数: 32

約数和(自身を含む): 154031220

約数和(自身を除く): 89600500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 100673, 201346, 402692, 503365, 805384, 1006730, 1610768, 2013460, 3221536, 4026920, 6443072, 8053840, 12886144, 16107680, 32215360, 64430720]

約数ペア:

[(1, 64430720), (2, 32215360), (4, 16107680), (5, 12886144), (8, 8053840), (10, 6443072), (16, 4026920), (20, 3221536), (32, 2013460), (40, 1610768), (64, 1006730), (80, 805384), (128, 503365), (160, 402692), (320, 201346), (640, 100673)]