64426140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{997}}^1$

素因数の和:1371

約数の個数: 72

約数和(自身を含む): 196166880

約数和(自身を除く): 131740740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 359, 718, 997, 1077, 1436, 1795, 1994, 2154, 2991, 3231, 3590, 3988, 4308, 4985, 5385, 5982, 6462, 7180, 8973, 9970, 10770, 11964, 12924, 14955, 16155, 17946, 19940, 21540, 29910, 32310, 35892, 44865, 59820, 64620, 89730, 179460, 357923, 715846, 1073769, 1431692, 1789615, 2147538, 3221307, 3579230, 4295076, 5368845, 6442614, 7158460, 10737690, 12885228, 16106535, 21475380, 32213070, 64426140]

約数ペア:

[(1, 64426140), (2, 32213070), (3, 21475380), (4, 16106535), (5, 12885228), (6, 10737690), (9, 7158460), (10, 6442614), (12, 5368845), (15, 4295076), (18, 3579230), (20, 3221307), (30, 2147538), (36, 1789615), (45, 1431692), (60, 1073769), (90, 715846), (180, 357923), (359, 179460), (718, 89730), (997, 64620), (1077, 59820), (1436, 44865), (1795, 35892), (1994, 32310), (2154, 29910), (2991, 21540), (3231, 19940), (3590, 17946), (3988, 16155), (4308, 14955), (4985, 12924), (5385, 11964), (5982, 10770), (6462, 9970), (7180, 8973)]