312769451620

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{389}}^1\times {\mathrm{222109}}^1$

素因数の和:222688

約数の個数: 48

約数和(自身を含む): 662145447600

約数和(自身を除く): 349375995980

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 389, 724, 778, 905, 1556, 1810, 1945, 3620, 3890, 7780, 70409, 140818, 222109, 281636, 352045, 444218, 704090, 888436, 1110545, 1408180, 2221090, 4442180, 40201729, 80403458, 86400401, 160806916, 172800802, 201008645, 345601604, 402017290, 432002005, 804034580, 864004010, 1728008020, 15638472581, 31276945162, 62553890324, 78192362905, 156384725810, 312769451620]

約数ペア:

[(1, 312769451620), (2, 156384725810), (4, 78192362905), (5, 62553890324), (10, 31276945162), (20, 15638472581), (181, 1728008020), (362, 864004010), (389, 804034580), (724, 432002005), (778, 402017290), (905, 345601604), (1556, 201008645), (1810, 172800802), (1945, 160806916), (3620, 86400401), (3890, 80403458), (7780, 40201729), (70409, 4442180), (140818, 2221090), (222109, 1408180), (281636, 1110545), (352045, 888436), (444218, 704090)]