420223360

素因数分解:

$2^7\times 5^1\times {\mathrm{656599}}^1$

素因数の和:656618

約数の個数: 32

約数和(自身を含む): 1004598000

約数和(自身を除く): 584374640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 656599, 1313198, 2626396, 3282995, 5252792, 6565990, 10505584, 13131980, 21011168, 26263960, 42022336, 52527920, 84044672, 105055840, 210111680, 420223360]

約数ペア:

[(1, 420223360), (2, 210111680), (4, 105055840), (5, 84044672), (8, 52527920), (10, 42022336), (16, 26263960), (20, 21011168), (32, 13131980), (40, 10505584), (64, 6565990), (80, 5252792), (128, 3282995), (160, 2626396), (320, 1313198), (640, 656599)]