1803620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{991}}^1$

素因数の和:1020

約数の個数: 48

約数和(自身を含む): 4666368

約数和(自身を除く): 2862748

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 991, 1820, 1982, 3964, 4955, 6937, 9910, 12883, 13874, 19820, 25766, 27748, 34685, 51532, 64415, 69370, 90181, 128830, 138740, 180362, 257660, 360724, 450905, 901810, 1803620]

約数ペア:

[(1, 1803620), (2, 901810), (4, 450905), (5, 360724), (7, 257660), (10, 180362), (13, 138740), (14, 128830), (20, 90181), (26, 69370), (28, 64415), (35, 51532), (52, 34685), (65, 27748), (70, 25766), (91, 19820), (130, 13874), (140, 12883), (182, 9910), (260, 6937), (364, 4955), (455, 3964), (910, 1982), (991, 1820)]