217610325

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{467}}^1$

素因数の和:611

約数の個数: 72

約数和(自身を含む): 414928800

約数和(自身を除く): 197318475

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 109, 171, 225, 285, 327, 467, 475, 545, 855, 981, 1401, 1425, 1635, 2071, 2335, 2725, 4203, 4275, 4905, 6213, 7005, 8175, 8873, 10355, 11675, 18639, 21015, 24525, 26619, 31065, 35025, 44365, 50903, 51775, 79857, 93195, 105075, 133095, 152709, 155325, 221825, 254515, 399285, 458127, 465975, 665475, 763545, 967157, 1272575, 1996425, 2290635, 2901471, 3817725, 4835785, 8704413, 11453175, 14507355, 24178925, 43522065, 72536775, 217610325]

約数ペア:

[(1, 217610325), (3, 72536775), (5, 43522065), (9, 24178925), (15, 14507355), (19, 11453175), (25, 8704413), (45, 4835785), (57, 3817725), (75, 2901471), (95, 2290635), (109, 1996425), (171, 1272575), (225, 967157), (285, 763545), (327, 665475), (467, 465975), (475, 458127), (545, 399285), (855, 254515), (981, 221825), (1401, 155325), (1425, 152709), (1635, 133095), (2071, 105075), (2335, 93195), (2725, 79857), (4203, 51775), (4275, 50903), (4905, 44365), (6213, 35025), (7005, 31065), (8175, 26619), (8873, 24525), (10355, 21015), (11675, 18639)]