31608520

素因数分解:

$2^3\times 5^1\times {\mathrm{503}}^1\times {\mathrm{1571}}^1$

素因数の和:2085

約数の個数: 32

約数和(自身を含む): 71305920

約数和(自身を除く): 39697400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503, 1006, 1571, 2012, 2515, 3142, 4024, 5030, 6284, 7855, 10060, 12568, 15710, 20120, 31420, 62840, 790213, 1580426, 3160852, 3951065, 6321704, 7902130, 15804260, 31608520]

約数ペア:

[(1, 31608520), (2, 15804260), (4, 7902130), (5, 6321704), (8, 3951065), (10, 3160852), (20, 1580426), (40, 790213), (503, 62840), (1006, 31420), (1571, 20120), (2012, 15710), (2515, 12568), (3142, 10060), (4024, 7855), (5030, 6284)]