7217980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 19514880

約数和(自身を除く): 12296900

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 43, 44, 55, 70, 77, 86, 109, 110, 140, 154, 172, 215, 218, 220, 301, 308, 385, 430, 436, 473, 545, 602, 763, 770, 860, 946, 1090, 1199, 1204, 1505, 1526, 1540, 1892, 2180, 2365, 2398, 3010, 3052, 3311, 3815, 4687, 4730, 4796, 5995, 6020, 6622, 7630, 8393, 9374, 9460, 11990, 13244, 15260, 16555, 16786, 18748, 23435, 23980, 32809, 33110, 33572, 41965, 46870, 51557, 65618, 66220, 83930, 93740, 103114, 131236, 164045, 167860, 206228, 257785, 328090, 360899, 515570, 656180, 721798, 1031140, 1443596, 1804495, 3608990, 7217980]

約数ペア:

[(1, 7217980), (2, 3608990), (4, 1804495), (5, 1443596), (7, 1031140), (10, 721798), (11, 656180), (14, 515570), (20, 360899), (22, 328090), (28, 257785), (35, 206228), (43, 167860), (44, 164045), (55, 131236), (70, 103114), (77, 93740), (86, 83930), (109, 66220), (110, 65618), (140, 51557), (154, 46870), (172, 41965), (215, 33572), (218, 33110), (220, 32809), (301, 23980), (308, 23435), (385, 18748), (430, 16786), (436, 16555), (473, 15260), (545, 13244), (602, 11990), (763, 9460), (770, 9374), (860, 8393), (946, 7630), (1090, 6622), (1199, 6020), (1204, 5995), (1505, 4796), (1526, 4730), (1540, 4687), (1892, 3815), (2180, 3311), (2365, 3052), (2398, 3010)]