397496740

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{1951}}^1$

素因数の和:2188

約数の個数: 48

約数和(自身を含む): 853945344

約数和(自身を除く): 456448604

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 167, 244, 305, 334, 610, 668, 835, 1220, 1670, 1951, 3340, 3902, 7804, 9755, 10187, 19510, 20374, 39020, 40748, 50935, 101870, 119011, 203740, 238022, 325817, 476044, 595055, 651634, 1190110, 1303268, 1629085, 2380220, 3258170, 6516340, 19874837, 39749674, 79499348, 99374185, 198748370, 397496740]

約数ペア:

[(1, 397496740), (2, 198748370), (4, 99374185), (5, 79499348), (10, 39749674), (20, 19874837), (61, 6516340), (122, 3258170), (167, 2380220), (244, 1629085), (305, 1303268), (334, 1190110), (610, 651634), (668, 595055), (835, 476044), (1220, 325817), (1670, 238022), (1951, 203740), (3340, 119011), (3902, 101870), (7804, 50935), (9755, 40748), (10187, 39020), (19510, 20374)]