31683640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{887}}^1$

素因数の和:964

約数の個数: 64

約数和(自身を含む): 76723200

約数和(自身を除く): 45039560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 760, 887, 893, 940, 1774, 1786, 1880, 3548, 3572, 4435, 4465, 7096, 7144, 8870, 8930, 16853, 17740, 17860, 33706, 35480, 35720, 41689, 67412, 83378, 84265, 134824, 166756, 168530, 208445, 333512, 337060, 416890, 674120, 792091, 833780, 1584182, 1667560, 3168364, 3960455, 6336728, 7920910, 15841820, 31683640]

約数ペア:

[(1, 31683640), (2, 15841820), (4, 7920910), (5, 6336728), (8, 3960455), (10, 3168364), (19, 1667560), (20, 1584182), (38, 833780), (40, 792091), (47, 674120), (76, 416890), (94, 337060), (95, 333512), (152, 208445), (188, 168530), (190, 166756), (235, 134824), (376, 84265), (380, 83378), (470, 67412), (760, 41689), (887, 35720), (893, 35480), (940, 33706), (1774, 17860), (1786, 17740), (1880, 16853), (3548, 8930), (3572, 8870), (4435, 7144), (4465, 7096)]