20170199680

素因数分解:

$2^7\times 5^1\times {\mathrm{31515937}}^1$

素因数の和:31515956

約数の個数: 32

約数和(自身を含む): 48219385140

約数和(自身を除く): 28049185460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31515937, 63031874, 126063748, 157579685, 252127496, 315159370, 504254992, 630318740, 1008509984, 1260637480, 2017019968, 2521274960, 4034039936, 5042549920, 10085099840, 20170199680]

約数ペア:

[(1, 20170199680), (2, 10085099840), (4, 5042549920), (5, 4034039936), (8, 2521274960), (10, 2017019968), (16, 1260637480), (20, 1008509984), (32, 630318740), (40, 504254992), (64, 315159370), (80, 252127496), (128, 157579685), (160, 126063748), (320, 63031874), (640, 31515937)]