81306888

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{619}}^1$

素因数の和:1062

約数の個数: 64

約数和(自身を含む): 219777600

約数和(自身を除く): 138470712

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 421, 619, 842, 1238, 1263, 1684, 1857, 2476, 2526, 3368, 3714, 4952, 5052, 5473, 7428, 8047, 10104, 10946, 14856, 16094, 16419, 21892, 24141, 32188, 32838, 43784, 48282, 64376, 65676, 96564, 131352, 193128, 260599, 521198, 781797, 1042396, 1563594, 2084792, 3127188, 3387787, 6254376, 6775574, 10163361, 13551148, 20326722, 27102296, 40653444, 81306888]

約数ペア:

[(1, 81306888), (2, 40653444), (3, 27102296), (4, 20326722), (6, 13551148), (8, 10163361), (12, 6775574), (13, 6254376), (24, 3387787), (26, 3127188), (39, 2084792), (52, 1563594), (78, 1042396), (104, 781797), (156, 521198), (312, 260599), (421, 193128), (619, 131352), (842, 96564), (1238, 65676), (1263, 64376), (1684, 48282), (1857, 43784), (2476, 32838), (2526, 32188), (3368, 24141), (3714, 21892), (4952, 16419), (5052, 16094), (5473, 14856), (7428, 10946), (8047, 10104)]