656568400760

素因数分解:

$2^3\times 5^1\times {\mathrm{106871}}^1\times {\mathrm{153589}}^1$

素因数の和:260471

約数の個数: 32

約数和(自身を含む): 1477302343200

約数和(自身を除く): 820733942440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 106871, 153589, 213742, 307178, 427484, 534355, 614356, 767945, 854968, 1068710, 1228712, 1535890, 2137420, 3071780, 4274840, 6143560, 16414210019, 32828420038, 65656840076, 82071050095, 131313680152, 164142100190, 328284200380, 656568400760]

約数ペア:

[(1, 656568400760), (2, 328284200380), (4, 164142100190), (5, 131313680152), (8, 82071050095), (10, 65656840076), (20, 32828420038), (40, 16414210019), (106871, 6143560), (153589, 4274840), (213742, 3071780), (307178, 2137420), (427484, 1535890), (534355, 1228712), (614356, 1068710), (767945, 854968)]