1684820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1381}}^1$

素因数の和:1451

約数の個数: 24

約数和(自身を含む): 3598728

約数和(自身を除く): 1913908

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1381, 2762, 5524, 6905, 13810, 27620, 84241, 168482, 336964, 421205, 842410, 1684820]

約数ペア:

[(1, 1684820), (2, 842410), (4, 421205), (5, 336964), (10, 168482), (20, 84241), (61, 27620), (122, 13810), (244, 6905), (305, 5524), (610, 2762), (1220, 1381)]