28902965

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{457}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 43088640

約数和(自身を除く): 14185675

約数列:

[1, 5, 7, 13, 35, 65, 91, 139, 455, 457, 695, 973, 1807, 2285, 3199, 4865, 5941, 9035, 12649, 15995, 29705, 41587, 63245, 63523, 207935, 317615, 444661, 825799, 2223305, 4128995, 5780593, 28902965]

約数ペア:

[(1, 28902965), (5, 5780593), (7, 4128995), (13, 2223305), (35, 825799), (65, 444661), (91, 317615), (139, 207935), (455, 63523), (457, 63245), (695, 41587), (973, 29705), (1807, 15995), (2285, 12649), (3199, 9035), (4865, 5941)]