131435680

素因数分解:

$2^5\times 5^1\times {\mathrm{167}}^1\times {\mathrm{4919}}^1$

素因数の和:5101

約数の個数: 48

約数和(自身を含む): 312439680

約数和(自身を除く): 181004000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 167, 334, 668, 835, 1336, 1670, 2672, 3340, 4919, 5344, 6680, 9838, 13360, 19676, 24595, 26720, 39352, 49190, 78704, 98380, 157408, 196760, 393520, 787040, 821473, 1642946, 3285892, 4107365, 6571784, 8214730, 13143568, 16429460, 26287136, 32858920, 65717840, 131435680]

約数ペア:

[(1, 131435680), (2, 65717840), (4, 32858920), (5, 26287136), (8, 16429460), (10, 13143568), (16, 8214730), (20, 6571784), (32, 4107365), (40, 3285892), (80, 1642946), (160, 821473), (167, 787040), (334, 393520), (668, 196760), (835, 157408), (1336, 98380), (1670, 78704), (2672, 49190), (3340, 39352), (4919, 26720), (5344, 24595), (6680, 19676), (9838, 13360)]