158990975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{311}}^1$

素因数の和:369

約数の個数: 54

約数和(自身を含む): 235406808

約数和(自身を除く): 76415833

約数列:

[1, 5, 11, 13, 25, 55, 65, 121, 143, 169, 275, 311, 325, 605, 715, 845, 1555, 1573, 1859, 3025, 3421, 3575, 4043, 4225, 7775, 7865, 9295, 17105, 20215, 20449, 37631, 39325, 44473, 46475, 52559, 85525, 101075, 102245, 188155, 222365, 262795, 489203, 511225, 578149, 940775, 1111825, 1313975, 2446015, 2890745, 6359639, 12230075, 14453725, 31798195, 158990975]

約数ペア:

[(1, 158990975), (5, 31798195), (11, 14453725), (13, 12230075), (25, 6359639), (55, 2890745), (65, 2446015), (121, 1313975), (143, 1111825), (169, 940775), (275, 578149), (311, 511225), (325, 489203), (605, 262795), (715, 222365), (845, 188155), (1555, 102245), (1573, 101075), (1859, 85525), (3025, 52559), (3421, 46475), (3575, 44473), (4043, 39325), (4225, 37631), (7775, 20449), (7865, 20215), (9295, 17105)]