221787680

素因数分解:

$2^5\times 5^1\times {\mathrm{281}}^1\times {\mathrm{4933}}^1$

素因数の和:5229

約数の個数: 48

約数和(自身を含む): 525944664

約数和(自身を除く): 304156984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 281, 562, 1124, 1405, 2248, 2810, 4496, 4933, 5620, 8992, 9866, 11240, 19732, 22480, 24665, 39464, 44960, 49330, 78928, 98660, 157856, 197320, 394640, 789280, 1386173, 2772346, 5544692, 6930865, 11089384, 13861730, 22178768, 27723460, 44357536, 55446920, 110893840, 221787680]

約数ペア:

[(1, 221787680), (2, 110893840), (4, 55446920), (5, 44357536), (8, 27723460), (10, 22178768), (16, 13861730), (20, 11089384), (32, 6930865), (40, 5544692), (80, 2772346), (160, 1386173), (281, 789280), (562, 394640), (1124, 197320), (1405, 157856), (2248, 98660), (2810, 78928), (4496, 49330), (4933, 44960), (5620, 39464), (8992, 24665), (9866, 22480), (11240, 19732)]