20207790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1987}}^1$

素因数の和:2113

約数の個数: 48

約数和(自身を含む): 53031888

約数和(自身を除く): 32824098

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 113, 226, 339, 565, 678, 1017, 1130, 1695, 1987, 2034, 3390, 3974, 5085, 5961, 9935, 10170, 11922, 17883, 19870, 29805, 35766, 59610, 89415, 178830, 224531, 449062, 673593, 1122655, 1347186, 2020779, 2245310, 3367965, 4041558, 6735930, 10103895, 20207790]

約数ペア:

[(1, 20207790), (2, 10103895), (3, 6735930), (5, 4041558), (6, 3367965), (9, 2245310), (10, 2020779), (15, 1347186), (18, 1122655), (30, 673593), (45, 449062), (90, 224531), (113, 178830), (226, 89415), (339, 59610), (565, 35766), (678, 29805), (1017, 19870), (1130, 17883), (1695, 11922), (1987, 10170), (2034, 9935), (3390, 5961), (3974, 5085)]