1861889080

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{229}}^1\times {\mathrm{1123}}^1$

素因数の和:1544

約数の個数: 64

約数和(自身を含む): 4234557600

約数和(自身を除く): 2372668520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 229, 362, 458, 724, 905, 916, 1123, 1145, 1448, 1810, 1832, 2246, 2290, 3620, 4492, 4580, 5615, 7240, 8984, 9160, 11230, 22460, 41449, 44920, 82898, 165796, 203263, 207245, 257167, 331592, 406526, 414490, 514334, 813052, 828980, 1016315, 1028668, 1285835, 1626104, 1657960, 2032630, 2057336, 2571670, 4065260, 5143340, 8130520, 10286680, 46547227, 93094454, 186188908, 232736135, 372377816, 465472270, 930944540, 1861889080]

約数ペア:

[(1, 1861889080), (2, 930944540), (4, 465472270), (5, 372377816), (8, 232736135), (10, 186188908), (20, 93094454), (40, 46547227), (181, 10286680), (229, 8130520), (362, 5143340), (458, 4065260), (724, 2571670), (905, 2057336), (916, 2032630), (1123, 1657960), (1145, 1626104), (1448, 1285835), (1810, 1028668), (1832, 1016315), (2246, 828980), (2290, 813052), (3620, 514334), (4492, 414490), (4580, 406526), (5615, 331592), (7240, 257167), (8984, 207245), (9160, 203263), (11230, 165796), (22460, 82898), (41449, 44920)]