28728245

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{613}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 42911232

約数和(自身を除く): 14182987

約数列:

[1, 5, 7, 13, 35, 65, 91, 103, 455, 515, 613, 721, 1339, 3065, 3605, 4291, 6695, 7969, 9373, 21455, 39845, 46865, 55783, 63139, 278915, 315695, 441973, 820807, 2209865, 4104035, 5745649, 28728245]

約数ペア:

[(1, 28728245), (5, 5745649), (7, 4104035), (13, 2209865), (35, 820807), (65, 441973), (91, 315695), (103, 278915), (455, 63139), (515, 55783), (613, 46865), (721, 39845), (1339, 21455), (3065, 9373), (3605, 7969), (4291, 6695)]