217643025

素因数分解:

$3^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{337}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 368825600

約数和(自身を除く): 151182575

約数列:

[1, 3, 5, 15, 25, 75, 79, 109, 237, 327, 337, 395, 545, 1011, 1185, 1635, 1685, 1975, 2725, 5055, 5925, 8175, 8425, 8611, 25275, 25833, 26623, 36733, 43055, 79869, 110199, 129165, 133115, 183665, 215275, 399345, 550995, 645825, 665575, 918325, 1996725, 2754975, 2901907, 8705721, 14509535, 43528605, 72547675, 217643025]

約数ペア:

[(1, 217643025), (3, 72547675), (5, 43528605), (15, 14509535), (25, 8705721), (75, 2901907), (79, 2754975), (109, 1996725), (237, 918325), (327, 665575), (337, 645825), (395, 550995), (545, 399345), (1011, 215275), (1185, 183665), (1635, 133115), (1685, 129165), (1975, 110199), (2725, 79869), (5055, 43055), (5925, 36733), (8175, 26623), (8425, 25833), (8611, 25275)]