20549490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52691}}^1$

素因数の和:52714

約数の個数: 32

約数和(自身を含む): 53113536

約数和(自身を除く): 32564046

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 52691, 105382, 158073, 263455, 316146, 526910, 684983, 790365, 1369966, 1580730, 2054949, 3424915, 4109898, 6849830, 10274745, 20549490]

約数ペア:

[(1, 20549490), (2, 10274745), (3, 6849830), (5, 4109898), (6, 3424915), (10, 2054949), (13, 1580730), (15, 1369966), (26, 790365), (30, 684983), (39, 526910), (65, 316146), (78, 263455), (130, 158073), (195, 105382), (390, 52691)]