12484980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:653

約数の個数: 72

約数和(自身を含む): 38220000

約数和(自身を除く): 25735020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 499, 556, 695, 834, 998, 1251, 1390, 1497, 1668, 1996, 2085, 2495, 2502, 2780, 2994, 4170, 4491, 4990, 5004, 5988, 6255, 7485, 8340, 8982, 9980, 12510, 14970, 17964, 22455, 25020, 29940, 44910, 69361, 89820, 138722, 208083, 277444, 346805, 416166, 624249, 693610, 832332, 1040415, 1248498, 1387220, 2080830, 2496996, 3121245, 4161660, 6242490, 12484980]

約数ペア:

[(1, 12484980), (2, 6242490), (3, 4161660), (4, 3121245), (5, 2496996), (6, 2080830), (9, 1387220), (10, 1248498), (12, 1040415), (15, 832332), (18, 693610), (20, 624249), (30, 416166), (36, 346805), (45, 277444), (60, 208083), (90, 138722), (139, 89820), (180, 69361), (278, 44910), (417, 29940), (499, 25020), (556, 22455), (695, 17964), (834, 14970), (998, 12510), (1251, 9980), (1390, 8982), (1497, 8340), (1668, 7485), (1996, 6255), (2085, 5988), (2495, 5004), (2502, 4990), (2780, 4491), (2994, 4170)]