87871644

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2221}}^1$

素因数の和:2395

約数の個数: 72

約数和(自身を含む): 255583328

約数和(自身を除く): 167711684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 157, 252, 314, 471, 628, 942, 1099, 1413, 1884, 2198, 2221, 2826, 3297, 4396, 4442, 5652, 6594, 6663, 8884, 9891, 13188, 13326, 15547, 19782, 19989, 26652, 31094, 39564, 39978, 46641, 62188, 79956, 93282, 139923, 186564, 279846, 348697, 559692, 697394, 1046091, 1394788, 2092182, 2440879, 3138273, 4184364, 4881758, 6276546, 7322637, 9763516, 12553092, 14645274, 21967911, 29290548, 43935822, 87871644]

約数ペア:

[(1, 87871644), (2, 43935822), (3, 29290548), (4, 21967911), (6, 14645274), (7, 12553092), (9, 9763516), (12, 7322637), (14, 6276546), (18, 4881758), (21, 4184364), (28, 3138273), (36, 2440879), (42, 2092182), (63, 1394788), (84, 1046091), (126, 697394), (157, 559692), (252, 348697), (314, 279846), (471, 186564), (628, 139923), (942, 93282), (1099, 79956), (1413, 62188), (1884, 46641), (2198, 39978), (2221, 39564), (2826, 31094), (3297, 26652), (4396, 19989), (4442, 19782), (5652, 15547), (6594, 13326), (6663, 13188), (8884, 9891)]