15841820

素因数分解:

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

素因数の和:962

約数の個数: 48

約数和(自身を含む): 35804160

約数和(自身を除く): 19962340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 887, 893, 940, 1774, 1786, 3548, 3572, 4435, 4465, 8870, 8930, 16853, 17740, 17860, 33706, 41689, 67412, 83378, 84265, 166756, 168530, 208445, 337060, 416890, 792091, 833780, 1584182, 3168364, 3960455, 7920910, 15841820]

約数ペア:

[(1, 15841820), (2, 7920910), (4, 3960455), (5, 3168364), (10, 1584182), (19, 833780), (20, 792091), (38, 416890), (47, 337060), (76, 208445), (94, 168530), (95, 166756), (188, 84265), (190, 83378), (235, 67412), (380, 41689), (470, 33706), (887, 17860), (893, 17740), (940, 16853), (1774, 8930), (1786, 8870), (3548, 4465), (3572, 4435)]