30267760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19913}}^1$

素因数の和:19945

約数の個数: 40

約数和(自身を含む): 74080080

約数和(自身を除く): 43812320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 19913, 39826, 79652, 99565, 159304, 199130, 318608, 378347, 398260, 756694, 796520, 1513388, 1593040, 1891735, 3026776, 3783470, 6053552, 7566940, 15133880, 30267760]

約数ペア:

[(1, 30267760), (2, 15133880), (4, 7566940), (5, 6053552), (8, 3783470), (10, 3026776), (16, 1891735), (19, 1593040), (20, 1513388), (38, 796520), (40, 756694), (76, 398260), (80, 378347), (95, 318608), (152, 199130), (190, 159304), (304, 99565), (380, 79652), (760, 39826), (1520, 19913)]