28505490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73091}}^1$

素因数の和:73114

約数の個数: 32

約数和(自身を含む): 73676736

約数和(自身を除く): 45171246

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 73091, 146182, 219273, 365455, 438546, 730910, 950183, 1096365, 1900366, 2192730, 2850549, 4750915, 5701098, 9501830, 14252745, 28505490]

約数ペア:

[(1, 28505490), (2, 14252745), (3, 9501830), (5, 5701098), (6, 4750915), (10, 2850549), (13, 2192730), (15, 1900366), (26, 1096365), (30, 950183), (39, 730910), (65, 438546), (78, 365455), (130, 219273), (195, 146182), (390, 73091)]