72866020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{88861}}^1$

素因数の和:88911

約数の個数: 24

約数和(自身を含む): 156752568

約数和(自身を除く): 83886548

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 88861, 177722, 355444, 444305, 888610, 1777220, 3643301, 7286602, 14573204, 18216505, 36433010, 72866020]

約数ペア:

[(1, 72866020), (2, 36433010), (4, 18216505), (5, 14573204), (10, 7286602), (20, 3643301), (41, 1777220), (82, 888610), (164, 444305), (205, 355444), (410, 177722), (820, 88861)]