77381740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1\times {\mathrm{431}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 167215104

約数和(自身を除く): 89833364

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 191, 235, 382, 431, 470, 764, 862, 940, 955, 1724, 1910, 2155, 3820, 4310, 8620, 8977, 17954, 20257, 35908, 40514, 44885, 81028, 82321, 89770, 101285, 164642, 179540, 202570, 329284, 405140, 411605, 823210, 1646420, 3869087, 7738174, 15476348, 19345435, 38690870, 77381740]

約数ペア:

[(1, 77381740), (2, 38690870), (4, 19345435), (5, 15476348), (10, 7738174), (20, 3869087), (47, 1646420), (94, 823210), (188, 411605), (191, 405140), (235, 329284), (382, 202570), (431, 179540), (470, 164642), (764, 101285), (862, 89770), (940, 82321), (955, 81028), (1724, 44885), (1910, 40514), (2155, 35908), (3820, 20257), (4310, 17954), (8620, 8977)]