31290975

素因数分解:

$3^3\times 5^2\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:477

約数の個数: 48

約数和(自身を含む): 58051840

約数和(自身を除く): 26760865

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 151, 225, 307, 453, 675, 755, 921, 1359, 1535, 2265, 2763, 3775, 4077, 4605, 6795, 7675, 8289, 11325, 13815, 20385, 23025, 33975, 41445, 46357, 69075, 101925, 139071, 207225, 231785, 417213, 695355, 1158925, 1251639, 2086065, 3476775, 6258195, 10430325, 31290975]

約数ペア:

[(1, 31290975), (3, 10430325), (5, 6258195), (9, 3476775), (15, 2086065), (25, 1251639), (27, 1158925), (45, 695355), (75, 417213), (135, 231785), (151, 207225), (225, 139071), (307, 101925), (453, 69075), (675, 46357), (755, 41445), (921, 33975), (1359, 23025), (1535, 20385), (2265, 13815), (2763, 11325), (3775, 8289), (4077, 7675), (4605, 6795)]