1991600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{383}}^1$

素因数の和:414

約数の個数: 60

約数和(自身を含む): 5166336

約数和(自身を除く): 3174736

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 383, 400, 520, 650, 766, 1040, 1300, 1532, 1915, 2600, 3064, 3830, 4979, 5200, 6128, 7660, 9575, 9958, 15320, 19150, 19916, 24895, 30640, 38300, 39832, 49790, 76600, 79664, 99580, 124475, 153200, 199160, 248950, 398320, 497900, 995800, 1991600]

約数ペア:

[(1, 1991600), (2, 995800), (4, 497900), (5, 398320), (8, 248950), (10, 199160), (13, 153200), (16, 124475), (20, 99580), (25, 79664), (26, 76600), (40, 49790), (50, 39832), (52, 38300), (65, 30640), (80, 24895), (100, 19916), (104, 19150), (130, 15320), (200, 9958), (208, 9575), (260, 7660), (325, 6128), (383, 5200), (400, 4979), (520, 3830), (650, 3064), (766, 2600), (1040, 1915), (1300, 1532)]