20939820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31727}}^1$

素因数の和:31750

約数の個数: 48

約数和(自身を含む): 63963648

約数和(自身を除く): 43023828

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31727, 63454, 95181, 126908, 158635, 190362, 317270, 348997, 380724, 475905, 634540, 697994, 951810, 1046991, 1395988, 1744985, 1903620, 2093982, 3489970, 4187964, 5234955, 6979940, 10469910, 20939820]

約数ペア:

[(1, 20939820), (2, 10469910), (3, 6979940), (4, 5234955), (5, 4187964), (6, 3489970), (10, 2093982), (11, 1903620), (12, 1744985), (15, 1395988), (20, 1046991), (22, 951810), (30, 697994), (33, 634540), (44, 475905), (55, 380724), (60, 348997), (66, 317270), (110, 190362), (132, 158635), (165, 126908), (220, 95181), (330, 63454), (660, 31727)]