18437680

素因数分解:

$2^4\times 5^1\times {\mathrm{230471}}^1$

素因数の和:230484

約数の個数: 20

約数和(自身を含む): 42867792

約数和(自身を除く): 24430112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230471, 460942, 921884, 1152355, 1843768, 2304710, 3687536, 4609420, 9218840, 18437680]

約数ペア:

[(1, 18437680), (2, 9218840), (4, 4609420), (5, 3687536), (8, 2304710), (10, 1843768), (16, 1152355), (20, 921884), (40, 460942), (80, 230471)]