161559972

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20681}}^1$

素因数の和:20729

約数の個数: 72

約数和(自身を含む): 481807872

約数和(自身を除く): 320247900

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 558, 651, 868, 1116, 1302, 1953, 2604, 3906, 7812, 20681, 41362, 62043, 82724, 124086, 144767, 186129, 248172, 289534, 372258, 434301, 579068, 641111, 744516, 868602, 1282222, 1302903, 1737204, 1923333, 2564444, 2605806, 3846666, 4487777, 5211612, 5769999, 7693332, 8975554, 11539998, 13463331, 17951108, 23079996, 26926662, 40389993, 53853324, 80779986, 161559972]

約数ペア:

[(1, 161559972), (2, 80779986), (3, 53853324), (4, 40389993), (6, 26926662), (7, 23079996), (9, 17951108), (12, 13463331), (14, 11539998), (18, 8975554), (21, 7693332), (28, 5769999), (31, 5211612), (36, 4487777), (42, 3846666), (62, 2605806), (63, 2564444), (84, 1923333), (93, 1737204), (124, 1302903), (126, 1282222), (186, 868602), (217, 744516), (252, 641111), (279, 579068), (372, 434301), (434, 372258), (558, 289534), (651, 248172), (868, 186129), (1116, 144767), (1302, 124086), (1953, 82724), (2604, 62043), (3906, 41362), (7812, 20681)]