20647530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{599}}^1$

素因数の和:995

約数の個数: 48

約数和(自身を含む): 53913600

約数和(自身を除く): 33266070

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 383, 599, 766, 1149, 1198, 1797, 1915, 2298, 2995, 3447, 3594, 3830, 5391, 5745, 5990, 6894, 8985, 10782, 11490, 17235, 17970, 26955, 34470, 53910, 229417, 458834, 688251, 1147085, 1376502, 2064753, 2294170, 3441255, 4129506, 6882510, 10323765, 20647530]

約数ペア:

[(1, 20647530), (2, 10323765), (3, 6882510), (5, 4129506), (6, 3441255), (9, 2294170), (10, 2064753), (15, 1376502), (18, 1147085), (30, 688251), (45, 458834), (90, 229417), (383, 53910), (599, 34470), (766, 26955), (1149, 17970), (1198, 17235), (1797, 11490), (1915, 10782), (2298, 8985), (2995, 6894), (3447, 5990), (3594, 5745), (3830, 5391)]