1900992080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{38891}}^1$

素因数の和:38964

約数の個数: 80

約数和(自身を含む): 4861188864

約数和(自身を除く): 2960196784

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 65, 80, 94, 104, 130, 188, 208, 235, 260, 376, 470, 520, 611, 752, 940, 1040, 1222, 1880, 2444, 3055, 3760, 4888, 6110, 9776, 12220, 24440, 38891, 48880, 77782, 155564, 194455, 311128, 388910, 505583, 622256, 777820, 1011166, 1555640, 1827877, 2022332, 2527915, 3111280, 3655754, 4044664, 5055830, 7311508, 8089328, 9139385, 10111660, 14623016, 18278770, 20223320, 23762401, 29246032, 36557540, 40446640, 47524802, 73115080, 95049604, 118812005, 146230160, 190099208, 237624010, 380198416, 475248020, 950496040, 1900992080]

約数ペア:

[(1, 1900992080), (2, 950496040), (4, 475248020), (5, 380198416), (8, 237624010), (10, 190099208), (13, 146230160), (16, 118812005), (20, 95049604), (26, 73115080), (40, 47524802), (47, 40446640), (52, 36557540), (65, 29246032), (80, 23762401), (94, 20223320), (104, 18278770), (130, 14623016), (188, 10111660), (208, 9139385), (235, 8089328), (260, 7311508), (376, 5055830), (470, 4044664), (520, 3655754), (611, 3111280), (752, 2527915), (940, 2022332), (1040, 1827877), (1222, 1555640), (1880, 1011166), (2444, 777820), (3055, 622256), (3760, 505583), (4888, 388910), (6110, 311128), (9776, 194455), (12220, 155564), (24440, 77782), (38891, 48880)]