20171640944

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{34549}}^1$

素因数の和:34978

約数の個数: 80

約数和(自身を含む): 48222955200

約数和(自身を除く): 28051314256

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 401, 728, 802, 1456, 1604, 2807, 3208, 5213, 5614, 6416, 10426, 11228, 20852, 22456, 34549, 36491, 41704, 44912, 69098, 72982, 83408, 138196, 145964, 241843, 276392, 291928, 449137, 483686, 552784, 583856, 898274, 967372, 1796548, 1934744, 3143959, 3593096, 3869488, 6287918, 7186192, 12575836, 13854149, 25151672, 27708298, 50303344, 55416596, 96979043, 110833192, 180103937, 193958086, 221666384, 360207874, 387916172, 720415748, 775832344, 1260727559, 1440831496, 1551664688, 2521455118, 2881662992, 5042910236, 10085820472, 20171640944]

約数ペア:

[(1, 20171640944), (2, 10085820472), (4, 5042910236), (7, 2881662992), (8, 2521455118), (13, 1551664688), (14, 1440831496), (16, 1260727559), (26, 775832344), (28, 720415748), (52, 387916172), (56, 360207874), (91, 221666384), (104, 193958086), (112, 180103937), (182, 110833192), (208, 96979043), (364, 55416596), (401, 50303344), (728, 27708298), (802, 25151672), (1456, 13854149), (1604, 12575836), (2807, 7186192), (3208, 6287918), (5213, 3869488), (5614, 3593096), (6416, 3143959), (10426, 1934744), (11228, 1796548), (20852, 967372), (22456, 898274), (34549, 583856), (36491, 552784), (41704, 483686), (44912, 449137), (69098, 291928), (72982, 276392), (83408, 241843), (138196, 145964)]