19918037680

素因数分解:

$2^4\times 5^1\times {\mathrm{1523}}^1\times {\mathrm{163477}}^1$

素因数の和:165013

約数の個数: 40

約数和(自身を含む): 46340127792

約数和(自身を除く): 26422090112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1523, 3046, 6092, 7615, 12184, 15230, 24368, 30460, 60920, 121840, 163477, 326954, 653908, 817385, 1307816, 1634770, 2615632, 3269540, 6539080, 13078160, 248975471, 497950942, 995901884, 1244877355, 1991803768, 2489754710, 3983607536, 4979509420, 9959018840, 19918037680]

約数ペア:

[(1, 19918037680), (2, 9959018840), (4, 4979509420), (5, 3983607536), (8, 2489754710), (10, 1991803768), (16, 1244877355), (20, 995901884), (40, 497950942), (80, 248975471), (1523, 13078160), (3046, 6539080), (6092, 3269540), (7615, 2615632), (12184, 1634770), (15230, 1307816), (24368, 817385), (30460, 653908), (60920, 326954), (121840, 163477)]