18700012

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 36368640

約数和(自身を除く): 17668628

約数列:

[1, 2, 4, 23, 29, 43, 46, 58, 86, 92, 116, 163, 172, 326, 652, 667, 989, 1247, 1334, 1978, 2494, 2668, 3749, 3956, 4727, 4988, 7009, 7498, 9454, 14018, 14996, 18908, 28036, 28681, 57362, 108721, 114724, 161207, 203261, 217442, 322414, 406522, 434884, 644828, 813044, 4675003, 9350006, 18700012]

約数ペア:

[(1, 18700012), (2, 9350006), (4, 4675003), (23, 813044), (29, 644828), (43, 434884), (46, 406522), (58, 322414), (86, 217442), (92, 203261), (116, 161207), (163, 114724), (172, 108721), (326, 57362), (652, 28681), (667, 28036), (989, 18908), (1247, 14996), (1334, 14018), (1978, 9454), (2494, 7498), (2668, 7009), (3749, 4988), (3956, 4727)]