78179620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{1423}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 170811648

約数和(自身を除く): 92632028

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 268, 335, 410, 670, 820, 1340, 1423, 2747, 2846, 5494, 5692, 7115, 10988, 13735, 14230, 27470, 28460, 54940, 58343, 95341, 116686, 190682, 233372, 291715, 381364, 476705, 583430, 953410, 1166860, 1906820, 3908981, 7817962, 15635924, 19544905, 39089810, 78179620]

約数ペア:

[(1, 78179620), (2, 39089810), (4, 19544905), (5, 15635924), (10, 7817962), (20, 3908981), (41, 1906820), (67, 1166860), (82, 953410), (134, 583430), (164, 476705), (205, 381364), (268, 291715), (335, 233372), (410, 190682), (670, 116686), (820, 95341), (1340, 58343), (1423, 54940), (2747, 28460), (2846, 27470), (5494, 14230), (5692, 13735), (7115, 10988)]