55581980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1571}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 122804640

約数和(自身を除く): 67222660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 580, 610, 1220, 1571, 1769, 3142, 3538, 6284, 7076, 7855, 8845, 15710, 17690, 31420, 35380, 45559, 91118, 95831, 182236, 191662, 227795, 383324, 455590, 479155, 911180, 958310, 1916620, 2779099, 5558198, 11116396, 13895495, 27790990, 55581980]

約数ペア:

[(1, 55581980), (2, 27790990), (4, 13895495), (5, 11116396), (10, 5558198), (20, 2779099), (29, 1916620), (58, 958310), (61, 911180), (116, 479155), (122, 455590), (145, 383324), (244, 227795), (290, 191662), (305, 182236), (580, 95831), (610, 91118), (1220, 45559), (1571, 35380), (1769, 31420), (3142, 17690), (3538, 15710), (6284, 8845), (7076, 7855)]