218604285

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 401448960

約数和(自身を除く): 182844675

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 131, 135, 141, 235, 263, 393, 423, 655, 705, 789, 1179, 1269, 1315, 1965, 2115, 2367, 3537, 3945, 5895, 6157, 6345, 7101, 11835, 12361, 17685, 18471, 30785, 34453, 35505, 37083, 55413, 61805, 92355, 103359, 111249, 166239, 172265, 185415, 277065, 310077, 333747, 516795, 556245, 831195, 930231, 1550385, 1619291, 1668735, 4651155, 4857873, 8096455, 14573619, 24289365, 43720857, 72868095, 218604285]

約数ペア:

[(1, 218604285), (3, 72868095), (5, 43720857), (9, 24289365), (15, 14573619), (27, 8096455), (45, 4857873), (47, 4651155), (131, 1668735), (135, 1619291), (141, 1550385), (235, 930231), (263, 831195), (393, 556245), (423, 516795), (655, 333747), (705, 310077), (789, 277065), (1179, 185415), (1269, 172265), (1315, 166239), (1965, 111249), (2115, 103359), (2367, 92355), (3537, 61805), (3945, 55413), (5895, 37083), (6157, 35505), (6345, 34453), (7101, 30785), (11835, 18471), (12361, 17685)]