72880160

素因数分解:

$2^5\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1621}}^1$

素因数の和:1917

約数の個数: 48

約数和(自身を含む): 172898712

約数和(自身を除く): 100018552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 281, 562, 1124, 1405, 1621, 2248, 2810, 3242, 4496, 5620, 6484, 8105, 8992, 11240, 12968, 16210, 22480, 25936, 32420, 44960, 51872, 64840, 129680, 259360, 455501, 911002, 1822004, 2277505, 3644008, 4555010, 7288016, 9110020, 14576032, 18220040, 36440080, 72880160]

約数ペア:

[(1, 72880160), (2, 36440080), (4, 18220040), (5, 14576032), (8, 9110020), (10, 7288016), (16, 4555010), (20, 3644008), (32, 2277505), (40, 1822004), (80, 911002), (160, 455501), (281, 259360), (562, 129680), (1124, 64840), (1405, 51872), (1621, 44960), (2248, 32420), (2810, 25936), (3242, 22480), (4496, 16210), (5620, 12968), (6484, 11240), (8105, 8992)]