20802420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12841}}^1$

素因数の和:12862

約数の個数: 60

約数和(自身を含む): 65263044

約数和(自身を除く): 44460624

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12841, 25682, 38523, 51364, 64205, 77046, 115569, 128410, 154092, 192615, 231138, 256820, 346707, 385230, 462276, 577845, 693414, 770460, 1040121, 1155690, 1386828, 1733535, 2080242, 2311380, 3467070, 4160484, 5200605, 6934140, 10401210, 20802420]

約数ペア:

[(1, 20802420), (2, 10401210), (3, 6934140), (4, 5200605), (5, 4160484), (6, 3467070), (9, 2311380), (10, 2080242), (12, 1733535), (15, 1386828), (18, 1155690), (20, 1040121), (27, 770460), (30, 693414), (36, 577845), (45, 462276), (54, 385230), (60, 346707), (81, 256820), (90, 231138), (108, 192615), (135, 154092), (162, 128410), (180, 115569), (270, 77046), (324, 64205), (405, 51364), (540, 38523), (810, 25682), (1620, 12841)]