65717840

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{4919}}^1$

素因数の和:5099

約数の個数: 40

約数和(自身を含む): 153740160

約数和(自身を除く): 88022320

約数列:

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

約数ペア:

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