278380820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{228181}}^1$

素因数の和:228251

約数の個数: 24

約数和(自身を含む): 594185928

約数和(自身を除く): 315805108

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 228181, 456362, 912724, 1140905, 2281810, 4563620, 13919041, 27838082, 55676164, 69595205, 139190410, 278380820]

約数ペア:

[(1, 278380820), (2, 139190410), (4, 69595205), (5, 55676164), (10, 27838082), (20, 13919041), (61, 4563620), (122, 2281810), (244, 1140905), (305, 912724), (610, 456362), (1220, 228181)]