20342790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17387}}^1$

素因数の和:17413

約数の個数: 48

約数和(自身を含む): 56963088

約数和(自身を除く): 36620298

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 17387, 34774, 52161, 86935, 104322, 156483, 173870, 226031, 260805, 312966, 452062, 521610, 678093, 782415, 1130155, 1356186, 1564830, 2034279, 2260310, 3390465, 4068558, 6780930, 10171395, 20342790]

約数ペア:

[(1, 20342790), (2, 10171395), (3, 6780930), (5, 4068558), (6, 3390465), (9, 2260310), (10, 2034279), (13, 1564830), (15, 1356186), (18, 1130155), (26, 782415), (30, 678093), (39, 521610), (45, 452062), (65, 312966), (78, 260805), (90, 226031), (117, 173870), (130, 156483), (195, 104322), (234, 86935), (390, 52161), (585, 34774), (1170, 17387)]