28402020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5441}}^1$

素因数の和:5485

約数の個数: 72

約数和(自身を含む): 89139960

約数和(自身を除く): 60737940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 5441, 10882, 16323, 21764, 27205, 32646, 48969, 54410, 65292, 81615, 97938, 108820, 157789, 163230, 195876, 244845, 315578, 326460, 473367, 489690, 631156, 788945, 946734, 979380, 1420101, 1577890, 1893468, 2366835, 2840202, 3155780, 4733670, 5680404, 7100505, 9467340, 14201010, 28402020]

約数ペア:

[(1, 28402020), (2, 14201010), (3, 9467340), (4, 7100505), (5, 5680404), (6, 4733670), (9, 3155780), (10, 2840202), (12, 2366835), (15, 1893468), (18, 1577890), (20, 1420101), (29, 979380), (30, 946734), (36, 788945), (45, 631156), (58, 489690), (60, 473367), (87, 326460), (90, 315578), (116, 244845), (145, 195876), (174, 163230), (180, 157789), (261, 108820), (290, 97938), (348, 81615), (435, 65292), (522, 54410), (580, 48969), (870, 32646), (1044, 27205), (1305, 21764), (1740, 16323), (2610, 10882), (5220, 5441)]