138156980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{27967}}^1$

素因数の和:28008

約数の個数: 48

約数和(自身を含む): 328903680

約数和(自身を除く): 190746700

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 27967, 55934, 111868, 139835, 279670, 363571, 531373, 559340, 727142, 1062746, 1454284, 1817855, 2125492, 2656865, 3635710, 5313730, 6907849, 7271420, 10627460, 13815698, 27631396, 34539245, 69078490, 138156980]

約数ペア:

[(1, 138156980), (2, 69078490), (4, 34539245), (5, 27631396), (10, 13815698), (13, 10627460), (19, 7271420), (20, 6907849), (26, 5313730), (38, 3635710), (52, 2656865), (65, 2125492), (76, 1817855), (95, 1454284), (130, 1062746), (190, 727142), (247, 559340), (260, 531373), (380, 363571), (494, 279670), (988, 139835), (1235, 111868), (2470, 55934), (4940, 27967)]