28525978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:358

約数の個数: 32

約数和(自身を含む): 47609856

約数和(自身を除く): 19083878

約数列:

[1, 2, 13, 26, 53, 106, 127, 163, 254, 326, 689, 1378, 1651, 2119, 3302, 4238, 6731, 8639, 13462, 17278, 20701, 41402, 87503, 112307, 175006, 224614, 269113, 538226, 1097153, 2194306, 14262989, 28525978]

約数ペア:

[(1, 28525978), (2, 14262989), (13, 2194306), (26, 1097153), (53, 538226), (106, 269113), (127, 224614), (163, 175006), (254, 112307), (326, 87503), (689, 41402), (1378, 20701), (1651, 17278), (2119, 13462), (3302, 8639), (4238, 6731)]