20156987180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2971}}^1\times {\mathrm{30839}}^1$

素因数の和:33830

約数の個数: 48

約数和(自身を含む): 46194865920

約数和(自身を除く): 26037878740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 2971, 5942, 11884, 14855, 29710, 30839, 32681, 59420, 61678, 65362, 123356, 130724, 154195, 163405, 308390, 326810, 339229, 616780, 653620, 678458, 1356916, 1696145, 3392290, 6784580, 91622669, 183245338, 366490676, 458113345, 916226690, 1007849359, 1832453380, 2015698718, 4031397436, 5039246795, 10078493590, 20156987180]

約数ペア:

[(1, 20156987180), (2, 10078493590), (4, 5039246795), (5, 4031397436), (10, 2015698718), (11, 1832453380), (20, 1007849359), (22, 916226690), (44, 458113345), (55, 366490676), (110, 183245338), (220, 91622669), (2971, 6784580), (5942, 3392290), (11884, 1696145), (14855, 1356916), (29710, 678458), (30839, 653620), (32681, 616780), (59420, 339229), (61678, 326810), (65362, 308390), (123356, 163405), (130724, 154195)]