28788445

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 12579875

約数列:

[1, 5, 7, 29, 35, 113, 145, 203, 251, 565, 791, 1015, 1255, 1757, 3277, 3955, 7279, 8785, 16385, 22939, 28363, 36395, 50953, 114695, 141815, 198541, 254765, 822527, 992705, 4112635, 5757689, 28788445]

約数ペア:

[(1, 28788445), (5, 5757689), (7, 4112635), (29, 992705), (35, 822527), (113, 254765), (145, 198541), (203, 141815), (251, 114695), (565, 50953), (791, 36395), (1015, 28363), (1255, 22939), (1757, 16385), (3277, 8785), (3955, 7279)]