171639940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{209317}}^1$

素因数の和:209367

約数の個数: 24

約数和(自身を含む): 369236952

約数和(自身を除く): 197597012

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 209317, 418634, 837268, 1046585, 2093170, 4186340, 8581997, 17163994, 34327988, 42909985, 85819970, 171639940]

約数ペア:

[(1, 171639940), (2, 85819970), (4, 42909985), (5, 34327988), (10, 17163994), (20, 8581997), (41, 4186340), (82, 2093170), (164, 1046585), (205, 837268), (410, 418634), (820, 209317)]