31906060

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 70560000

約数和(自身を除く): 38653940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 139, 230, 278, 460, 499, 556, 695, 998, 1390, 1996, 2495, 2780, 3197, 4990, 6394, 9980, 11477, 12788, 15985, 22954, 31970, 45908, 57385, 63940, 69361, 114770, 138722, 229540, 277444, 346805, 693610, 1387220, 1595303, 3190606, 6381212, 7976515, 15953030, 31906060]

約数ペア:

[(1, 31906060), (2, 15953030), (4, 7976515), (5, 6381212), (10, 3190606), (20, 1595303), (23, 1387220), (46, 693610), (92, 346805), (115, 277444), (139, 229540), (230, 138722), (278, 114770), (460, 69361), (499, 63940), (556, 57385), (695, 45908), (998, 31970), (1390, 22954), (1996, 15985), (2495, 12788), (2780, 11477), (3197, 9980), (4990, 6394)]