858691760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{631391}}^1$

素因数の和:631421

約数の個数: 40

約数和(自身を含む): 2113900416

約数和(自身を除く): 1255208656

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 631391, 1262782, 2525564, 3156955, 5051128, 6313910, 10102256, 10733647, 12627820, 21467294, 25255640, 42934588, 50511280, 53668235, 85869176, 107336470, 171738352, 214672940, 429345880, 858691760]

約数ペア:

[(1, 858691760), (2, 429345880), (4, 214672940), (5, 171738352), (8, 107336470), (10, 85869176), (16, 53668235), (17, 50511280), (20, 42934588), (34, 25255640), (40, 21467294), (68, 12627820), (80, 10733647), (85, 10102256), (136, 6313910), (170, 5051128), (272, 3156955), (340, 2525564), (680, 1262782), (1360, 631391)]