441867080

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{991}}^1$

素因数の和:1230

約数の個数: 64

約数和(自身を含む): 1015649280

約数和(自身を除く): 573782200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 157, 284, 314, 355, 568, 628, 710, 785, 991, 1256, 1420, 1570, 1982, 2840, 3140, 3964, 4955, 6280, 7928, 9910, 11147, 19820, 22294, 39640, 44588, 55735, 70361, 89176, 111470, 140722, 155587, 222940, 281444, 311174, 351805, 445880, 562888, 622348, 703610, 777935, 1244696, 1407220, 1555870, 2814440, 3111740, 6223480, 11046677, 22093354, 44186708, 55233385, 88373416, 110466770, 220933540, 441867080]

約数ペア:

[(1, 441867080), (2, 220933540), (4, 110466770), (5, 88373416), (8, 55233385), (10, 44186708), (20, 22093354), (40, 11046677), (71, 6223480), (142, 3111740), (157, 2814440), (284, 1555870), (314, 1407220), (355, 1244696), (568, 777935), (628, 703610), (710, 622348), (785, 562888), (991, 445880), (1256, 351805), (1420, 311174), (1570, 281444), (1982, 222940), (2840, 155587), (3140, 140722), (3964, 111470), (4955, 89176), (6280, 70361), (7928, 55735), (9910, 44588), (11147, 39640), (19820, 22294)]