20158749620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{366923}}^1$

素因数の和:367040

約数の個数: 48

約数和(自身を含む): 44013267648

約数和(自身を除く): 23854518028

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 268, 335, 410, 670, 820, 1340, 2747, 5494, 10988, 13735, 27470, 54940, 366923, 733846, 1467692, 1834615, 3669230, 7338460, 15043843, 24583841, 30087686, 49167682, 60175372, 75219215, 98335364, 122919205, 150438430, 245838410, 300876860, 491676820, 1007937481, 2015874962, 4031749924, 5039687405, 10079374810, 20158749620]

約数ペア:

[(1, 20158749620), (2, 10079374810), (4, 5039687405), (5, 4031749924), (10, 2015874962), (20, 1007937481), (41, 491676820), (67, 300876860), (82, 245838410), (134, 150438430), (164, 122919205), (205, 98335364), (268, 75219215), (335, 60175372), (410, 49167682), (670, 30087686), (820, 24583841), (1340, 15043843), (2747, 7338460), (5494, 3669230), (10988, 1834615), (13735, 1467692), (27470, 733846), (54940, 366923)]