18520976

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:339

約数の個数: 40

約数和(自身を含む): 36970104

約数和(自身を除く): 18449128

約数列:

[1, 2, 4, 8, 16, 73, 101, 146, 157, 202, 292, 314, 404, 584, 628, 808, 1168, 1256, 1616, 2512, 7373, 11461, 14746, 15857, 22922, 29492, 31714, 45844, 58984, 63428, 91688, 117968, 126856, 183376, 253712, 1157561, 2315122, 4630244, 9260488, 18520976]

約数ペア:

[(1, 18520976), (2, 9260488), (4, 4630244), (8, 2315122), (16, 1157561), (73, 253712), (101, 183376), (146, 126856), (157, 117968), (202, 91688), (292, 63428), (314, 58984), (404, 45844), (584, 31714), (628, 29492), (808, 22922), (1168, 15857), (1256, 14746), (1616, 11461), (2512, 7373)]