390412988

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2557}}^1$

素因数の和:2635

約数の個数: 72

約数和(自身を含む): 857339280

約数和(自身を除く): 466926292

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 49, 76, 82, 98, 133, 164, 196, 266, 287, 532, 574, 779, 931, 1148, 1558, 1862, 2009, 2557, 3116, 3724, 4018, 5114, 5453, 8036, 10228, 10906, 17899, 21812, 35798, 38171, 48583, 71596, 76342, 97166, 104837, 125293, 152684, 194332, 209674, 250586, 340081, 419348, 501172, 680162, 733859, 1360324, 1467718, 1991903, 2380567, 2935436, 3983806, 4761134, 5137013, 7967612, 9522268, 10274026, 13943321, 20548052, 27886642, 55773284, 97603247, 195206494, 390412988]

約数ペア:

[(1, 390412988), (2, 195206494), (4, 97603247), (7, 55773284), (14, 27886642), (19, 20548052), (28, 13943321), (38, 10274026), (41, 9522268), (49, 7967612), (76, 5137013), (82, 4761134), (98, 3983806), (133, 2935436), (164, 2380567), (196, 1991903), (266, 1467718), (287, 1360324), (532, 733859), (574, 680162), (779, 501172), (931, 419348), (1148, 340081), (1558, 250586), (1862, 209674), (2009, 194332), (2557, 152684), (3116, 125293), (3724, 104837), (4018, 97166), (5114, 76342), (5453, 71596), (8036, 48583), (10228, 38171), (10906, 35798), (17899, 21812)]