13421480

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{797}}^1$

素因数の和:1229

約数の個数: 32

約数和(自身を含む): 30308040

約数和(自身を除く): 16886560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 797, 842, 1594, 1684, 2105, 3188, 3368, 3985, 4210, 6376, 7970, 8420, 15940, 16840, 31880, 335537, 671074, 1342148, 1677685, 2684296, 3355370, 6710740, 13421480]

約数ペア:

[(1, 13421480), (2, 6710740), (4, 3355370), (5, 2684296), (8, 1677685), (10, 1342148), (20, 671074), (40, 335537), (421, 31880), (797, 16840), (842, 15940), (1594, 8420), (1684, 7970), (2105, 6376), (3188, 4210), (3368, 3985)]