20198890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{907}}^1$

素因数の和:1062

約数の個数: 32

約数和(自身を含む): 38833344

約数和(自身を除く): 18634454

約数列:

[1, 2, 5, 10, 17, 34, 85, 131, 170, 262, 655, 907, 1310, 1814, 2227, 4454, 4535, 9070, 11135, 15419, 22270, 30838, 77095, 118817, 154190, 237634, 594085, 1188170, 2019889, 4039778, 10099445, 20198890]

約数ペア:

[(1, 20198890), (2, 10099445), (5, 4039778), (10, 2019889), (17, 1188170), (34, 594085), (85, 237634), (131, 154190), (170, 118817), (262, 77095), (655, 30838), (907, 22270), (1310, 15419), (1814, 11135), (2227, 9070), (4454, 4535)]