213667825

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{359}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 321408000

約数和(自身を除く): 107740175

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 179, 359, 475, 665, 895, 1253, 1795, 2513, 3325, 3401, 4475, 6265, 6821, 8975, 12565, 17005, 23807, 31325, 34105, 47747, 62825, 64261, 85025, 119035, 170525, 238735, 321305, 449827, 595175, 1193675, 1220959, 1606525, 2249135, 6104795, 8546713, 11245675, 30523975, 42733565, 213667825]

約数ペア:

[(1, 213667825), (5, 42733565), (7, 30523975), (19, 11245675), (25, 8546713), (35, 6104795), (95, 2249135), (133, 1606525), (175, 1220959), (179, 1193675), (359, 595175), (475, 449827), (665, 321305), (895, 238735), (1253, 170525), (1795, 119035), (2513, 85025), (3325, 64261), (3401, 62825), (4475, 47747), (6265, 34105), (6821, 31325), (8975, 23807), (12565, 17005)]