2078125525

素因数分解:

$5^2\times 7^4\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:516

約数の個数: 60

約数和(自身を含む): 3047768100

約数和(自身を除く): 969642575

約数列:

[1, 5, 7, 25, 35, 49, 89, 175, 245, 343, 389, 445, 623, 1225, 1715, 1945, 2225, 2401, 2723, 3115, 4361, 8575, 9725, 12005, 13615, 15575, 19061, 21805, 30527, 34621, 60025, 68075, 95305, 109025, 133427, 152635, 173105, 213689, 242347, 476525, 667135, 763175, 865525, 933989, 1068445, 1211735, 1696429, 3335675, 4669945, 5342225, 6058675, 8482145, 11875003, 23349725, 42410725, 59375015, 83125021, 296875075, 415625105, 2078125525]

約数ペア:

[(1, 2078125525), (5, 415625105), (7, 296875075), (25, 83125021), (35, 59375015), (49, 42410725), (89, 23349725), (175, 11875003), (245, 8482145), (343, 6058675), (389, 5342225), (445, 4669945), (623, 3335675), (1225, 1696429), (1715, 1211735), (1945, 1068445), (2225, 933989), (2401, 865525), (2723, 763175), (3115, 667135), (4361, 476525), (8575, 242347), (9725, 213689), (12005, 173105), (13615, 152635), (15575, 133427), (19061, 109025), (21805, 95305), (30527, 68075), (34621, 60025)]