28804490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20143}}^1$

素因数の和:20174

約数の個数: 32

約数和(自身を含む): 60915456

約数和(自身を除く): 32110966

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 20143, 40286, 100715, 201430, 221573, 261859, 443146, 523718, 1107865, 1309295, 2215730, 2618590, 2880449, 5760898, 14402245, 28804490]

約数ペア:

[(1, 28804490), (2, 14402245), (5, 5760898), (10, 2880449), (11, 2618590), (13, 2215730), (22, 1309295), (26, 1107865), (55, 523718), (65, 443146), (110, 261859), (130, 221573), (143, 201430), (286, 100715), (715, 40286), (1430, 20143)]