12989775

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 22919168

約数和(自身を除く): 9929393

約数列:

[1, 3, 5, 15, 25, 31, 37, 75, 93, 111, 151, 155, 185, 453, 465, 555, 755, 775, 925, 1147, 2265, 2325, 2775, 3441, 3775, 4681, 5587, 5735, 11325, 14043, 16761, 17205, 23405, 27935, 28675, 70215, 83805, 86025, 117025, 139675, 173197, 351075, 419025, 519591, 865985, 2597955, 4329925, 12989775]

約数ペア:

[(1, 12989775), (3, 4329925), (5, 2597955), (15, 865985), (25, 519591), (31, 419025), (37, 351075), (75, 173197), (93, 139675), (111, 117025), (151, 86025), (155, 83805), (185, 70215), (453, 28675), (465, 27935), (555, 23405), (755, 17205), (775, 16761), (925, 14043), (1147, 11325), (2265, 5735), (2325, 5587), (2775, 4681), (3441, 3775)]