66887940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{22751}}^1$

素因数の和:22777

約数の個数: 72

約数和(自身を含む): 217873152

約数和(自身を除く): 150985212

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 22751, 45502, 68253, 91004, 113755, 136506, 159257, 227510, 273012, 318514, 341265, 455020, 477771, 637028, 682530, 796285, 955542, 1114799, 1365060, 1592570, 1911084, 2229598, 2388855, 3185140, 3344397, 4459196, 4777710, 5573995, 6688794, 9555420, 11147990, 13377588, 16721985, 22295980, 33443970, 66887940]

約数ペア:

[(1, 66887940), (2, 33443970), (3, 22295980), (4, 16721985), (5, 13377588), (6, 11147990), (7, 9555420), (10, 6688794), (12, 5573995), (14, 4777710), (15, 4459196), (20, 3344397), (21, 3185140), (28, 2388855), (30, 2229598), (35, 1911084), (42, 1592570), (49, 1365060), (60, 1114799), (70, 955542), (84, 796285), (98, 682530), (105, 637028), (140, 477771), (147, 455020), (196, 341265), (210, 318514), (245, 273012), (294, 227510), (420, 159257), (490, 136506), (588, 113755), (735, 91004), (980, 68253), (1470, 45502), (2940, 22751)]