77881580

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11353}}^1$

素因数の和:11383

約数の個数: 48

約数和(自身を含む): 190747200

約数和(自身を除く): 112865620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 11353, 22706, 45412, 56765, 79471, 113530, 158942, 227060, 317884, 397355, 556297, 794710, 1112594, 1589420, 2225188, 2781485, 3894079, 5562970, 7788158, 11125940, 15576316, 19470395, 38940790, 77881580]

約数ペア:

[(1, 77881580), (2, 38940790), (4, 19470395), (5, 15576316), (7, 11125940), (10, 7788158), (14, 5562970), (20, 3894079), (28, 2781485), (35, 2225188), (49, 1589420), (70, 1112594), (98, 794710), (140, 556297), (196, 397355), (245, 317884), (343, 227060), (490, 158942), (686, 113530), (980, 79471), (1372, 56765), (1715, 45412), (3430, 22706), (6860, 11353)]