68353020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{761}}^1$

素因数の和:1275

約数の個数: 72

約数和(自身を含む): 208026000

約数和(自身を除く): 139672980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 499, 761, 998, 1497, 1522, 1996, 2283, 2495, 2994, 3044, 3805, 4491, 4566, 4990, 5988, 6849, 7485, 7610, 8982, 9132, 9980, 11415, 13698, 14970, 15220, 17964, 22455, 22830, 27396, 29940, 34245, 44910, 45660, 68490, 89820, 136980, 379739, 759478, 1139217, 1518956, 1898695, 2278434, 3417651, 3797390, 4556868, 5696085, 6835302, 7594780, 11392170, 13670604, 17088255, 22784340, 34176510, 68353020]

約数ペア:

[(1, 68353020), (2, 34176510), (3, 22784340), (4, 17088255), (5, 13670604), (6, 11392170), (9, 7594780), (10, 6835302), (12, 5696085), (15, 4556868), (18, 3797390), (20, 3417651), (30, 2278434), (36, 1898695), (45, 1518956), (60, 1139217), (90, 759478), (180, 379739), (499, 136980), (761, 89820), (998, 68490), (1497, 45660), (1522, 44910), (1996, 34245), (2283, 29940), (2495, 27396), (2994, 22830), (3044, 22455), (3805, 17964), (4491, 15220), (4566, 14970), (4990, 13698), (5988, 11415), (6849, 9980), (7485, 9132), (7610, 8982)]