123639640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{1051}}^1$

素因数の和:1252

約数の個数: 64

約数和(自身を含む): 296537760

約数和(自身を除く): 172898120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 173, 340, 346, 680, 692, 865, 1051, 1384, 1730, 2102, 2941, 3460, 4204, 5255, 5882, 6920, 8408, 10510, 11764, 14705, 17867, 21020, 23528, 29410, 35734, 42040, 58820, 71468, 89335, 117640, 142936, 178670, 181823, 357340, 363646, 714680, 727292, 909115, 1454584, 1818230, 3090991, 3636460, 6181982, 7272920, 12363964, 15454955, 24727928, 30909910, 61819820, 123639640]

約数ペア:

[(1, 123639640), (2, 61819820), (4, 30909910), (5, 24727928), (8, 15454955), (10, 12363964), (17, 7272920), (20, 6181982), (34, 3636460), (40, 3090991), (68, 1818230), (85, 1454584), (136, 909115), (170, 727292), (173, 714680), (340, 363646), (346, 357340), (680, 181823), (692, 178670), (865, 142936), (1051, 117640), (1384, 89335), (1730, 71468), (2102, 58820), (2941, 42040), (3460, 35734), (4204, 29410), (5255, 23528), (5882, 21020), (6920, 17867), (8408, 14705), (10510, 11764)]