28958215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 41332032

約数和(自身を除く): 12373817

約数列:

[1, 5, 11, 13, 55, 65, 101, 143, 401, 505, 715, 1111, 1313, 2005, 4411, 5213, 5555, 6565, 14443, 22055, 26065, 40501, 57343, 72215, 202505, 286715, 445511, 526513, 2227555, 2632565, 5791643, 28958215]

約数ペア:

[(1, 28958215), (5, 5791643), (11, 2632565), (13, 2227555), (55, 526513), (65, 445511), (101, 286715), (143, 202505), (401, 72215), (505, 57343), (715, 40501), (1111, 26065), (1313, 22055), (2005, 14443), (4411, 6565), (5213, 5555)]