16991260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{457}}^1$

素因数の和:503

約数の個数: 72

約数和(自身を含む): 42242256

約数和(自身を除く): 25250996

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 169, 220, 260, 286, 338, 457, 572, 676, 715, 845, 914, 1430, 1690, 1828, 1859, 2285, 2860, 3380, 3718, 4570, 5027, 5941, 7436, 9140, 9295, 10054, 11882, 18590, 20108, 23764, 25135, 29705, 37180, 50270, 59410, 65351, 77233, 100540, 118820, 130702, 154466, 261404, 308932, 326755, 386165, 653510, 772330, 849563, 1307020, 1544660, 1699126, 3398252, 4247815, 8495630, 16991260]

約数ペア:

[(1, 16991260), (2, 8495630), (4, 4247815), (5, 3398252), (10, 1699126), (11, 1544660), (13, 1307020), (20, 849563), (22, 772330), (26, 653510), (44, 386165), (52, 326755), (55, 308932), (65, 261404), (110, 154466), (130, 130702), (143, 118820), (169, 100540), (220, 77233), (260, 65351), (286, 59410), (338, 50270), (457, 37180), (572, 29705), (676, 25135), (715, 23764), (845, 20108), (914, 18590), (1430, 11882), (1690, 10054), (1828, 9295), (1859, 9140), (2285, 7436), (2860, 5941), (3380, 5027), (3718, 4570)]