20912809920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{21784177}}^1$

素因数の和:21784197

約数の個数: 56

約数和(自身を含む): 66398174544

約数和(自身を除く): 45485364624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 21784177, 43568354, 65352531, 87136708, 108920885, 130705062, 174273416, 217841770, 261410124, 326762655, 348546832, 435683540, 522820248, 653525310, 697093664, 871367080, 1045640496, 1307050620, 1394187328, 1742734160, 2091280992, 2614101240, 3485468320, 4182561984, 5228202480, 6970936640, 10456404960, 20912809920]

約数ペア:

[(1, 20912809920), (2, 10456404960), (3, 6970936640), (4, 5228202480), (5, 4182561984), (6, 3485468320), (8, 2614101240), (10, 2091280992), (12, 1742734160), (15, 1394187328), (16, 1307050620), (20, 1045640496), (24, 871367080), (30, 697093664), (32, 653525310), (40, 522820248), (48, 435683540), (60, 348546832), (64, 326762655), (80, 261410124), (96, 217841770), (120, 174273416), (160, 130705062), (192, 108920885), (240, 87136708), (320, 65352531), (480, 43568354), (960, 21784177)]