20338620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5557}}^1$

素因数の和:5630

約数の個数: 48

約数和(自身を含む): 57892128

約数和(自身を除く): 37553508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5557, 11114, 16671, 22228, 27785, 33342, 55570, 66684, 83355, 111140, 166710, 333420, 338977, 677954, 1016931, 1355908, 1694885, 2033862, 3389770, 4067724, 5084655, 6779540, 10169310, 20338620]

約数ペア:

[(1, 20338620), (2, 10169310), (3, 6779540), (4, 5084655), (5, 4067724), (6, 3389770), (10, 2033862), (12, 1694885), (15, 1355908), (20, 1016931), (30, 677954), (60, 338977), (61, 333420), (122, 166710), (183, 111140), (244, 83355), (305, 66684), (366, 55570), (610, 33342), (732, 27785), (915, 22228), (1220, 16671), (1830, 11114), (3660, 5557)]