31731320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11173}}^1$

素因数の和:11255

約数の個数: 32

約数和(自身を含む): 72407520

約数和(自身を除く): 40676200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 11173, 22346, 44692, 55865, 89384, 111730, 223460, 446920, 793283, 1586566, 3173132, 3966415, 6346264, 7932830, 15865660, 31731320]

約数ペア:

[(1, 31731320), (2, 15865660), (4, 7932830), (5, 6346264), (8, 3966415), (10, 3173132), (20, 1586566), (40, 793283), (71, 446920), (142, 223460), (284, 111730), (355, 89384), (568, 55865), (710, 44692), (1420, 22346), (2840, 11173)]