218128840

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{24023}}^1$

素因数の和:24261

約数の個数: 32

約数和(自身を含む): 492972480

約数和(自身を除く): 274843640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 9080, 24023, 48046, 96092, 120115, 192184, 240230, 480460, 960920, 5453221, 10906442, 21812884, 27266105, 43625768, 54532210, 109064420, 218128840]

約数ペア:

[(1, 218128840), (2, 109064420), (4, 54532210), (5, 43625768), (8, 27266105), (10, 21812884), (20, 10906442), (40, 5453221), (227, 960920), (454, 480460), (908, 240230), (1135, 192184), (1816, 120115), (2270, 96092), (4540, 48046), (9080, 24023)]