2687919980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{20323}}^1$

素因数の和:20738

約数の個数: 48

約数和(自身を含む): 5992328160

約数和(自身を除く): 3304408180

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 389, 778, 1556, 1945, 3890, 6613, 7780, 13226, 20323, 26452, 33065, 40646, 66130, 81292, 101615, 132260, 203230, 345491, 406460, 690982, 1381964, 1727455, 3454910, 6909820, 7905647, 15811294, 31622588, 39528235, 79056470, 134395999, 158112940, 268791998, 537583996, 671979995, 1343959990, 2687919980]

約数ペア:

[(1, 2687919980), (2, 1343959990), (4, 671979995), (5, 537583996), (10, 268791998), (17, 158112940), (20, 134395999), (34, 79056470), (68, 39528235), (85, 31622588), (170, 15811294), (340, 7905647), (389, 6909820), (778, 3454910), (1556, 1727455), (1945, 1381964), (3890, 690982), (6613, 406460), (7780, 345491), (13226, 203230), (20323, 132260), (26452, 101615), (33065, 81292), (40646, 66130)]