3919640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 9504000

約数和(自身を除く): 5584360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 109, 116, 124, 145, 155, 218, 232, 248, 290, 310, 436, 545, 580, 620, 872, 899, 1090, 1160, 1240, 1798, 2180, 3161, 3379, 3596, 4360, 4495, 6322, 6758, 7192, 8990, 12644, 13516, 15805, 16895, 17980, 25288, 27032, 31610, 33790, 35960, 63220, 67580, 97991, 126440, 135160, 195982, 391964, 489955, 783928, 979910, 1959820, 3919640]

約数ペア:

[(1, 3919640), (2, 1959820), (4, 979910), (5, 783928), (8, 489955), (10, 391964), (20, 195982), (29, 135160), (31, 126440), (40, 97991), (58, 67580), (62, 63220), (109, 35960), (116, 33790), (124, 31610), (145, 27032), (155, 25288), (218, 17980), (232, 16895), (248, 15805), (290, 13516), (310, 12644), (436, 8990), (545, 7192), (580, 6758), (620, 6322), (872, 4495), (899, 4360), (1090, 3596), (1160, 3379), (1240, 3161), (1798, 2180)]