31844920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11213}}^1$

素因数の和:11295

約数の個数: 32

約数和(自身を含む): 72666720

約数和(自身を除く): 40821800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 11213, 22426, 44852, 56065, 89704, 112130, 224260, 448520, 796123, 1592246, 3184492, 3980615, 6368984, 7961230, 15922460, 31844920]

約数ペア:

[(1, 31844920), (2, 15922460), (4, 7961230), (5, 6368984), (8, 3980615), (10, 3184492), (20, 1592246), (40, 796123), (71, 448520), (142, 224260), (284, 112130), (355, 89704), (568, 56065), (710, 44852), (1420, 22426), (2840, 11213)]