18984540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{797}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 53357472

約数和(自身を除く): 34372932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 397, 794, 797, 1191, 1588, 1594, 1985, 2382, 2391, 3188, 3970, 3985, 4764, 4782, 5955, 7940, 7970, 9564, 11910, 11955, 15940, 23820, 23910, 47820, 316409, 632818, 949227, 1265636, 1582045, 1898454, 3164090, 3796908, 4746135, 6328180, 9492270, 18984540]

約数ペア:

[(1, 18984540), (2, 9492270), (3, 6328180), (4, 4746135), (5, 3796908), (6, 3164090), (10, 1898454), (12, 1582045), (15, 1265636), (20, 949227), (30, 632818), (60, 316409), (397, 47820), (794, 23910), (797, 23820), (1191, 15940), (1588, 11955), (1594, 11910), (1985, 9564), (2382, 7970), (2391, 7940), (3188, 5955), (3970, 4782), (3985, 4764)]