20716578428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{123457}}^1$

素因数の和:123942

約数の個数: 48

約数和(自身を含む): 44717475264

約数和(自身を除く): 24000896836

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 461, 922, 1844, 3227, 5993, 6454, 11986, 12908, 23972, 41951, 83902, 123457, 167804, 246914, 493828, 864199, 1604941, 1728398, 3209882, 3456796, 6419764, 11234587, 22469174, 44938348, 56913677, 113827354, 227654708, 398395739, 739877801, 796791478, 1479755602, 1593582956, 2959511204, 5179144607, 10358289214, 20716578428]

約数ペア:

[(1, 20716578428), (2, 10358289214), (4, 5179144607), (7, 2959511204), (13, 1593582956), (14, 1479755602), (26, 796791478), (28, 739877801), (52, 398395739), (91, 227654708), (182, 113827354), (364, 56913677), (461, 44938348), (922, 22469174), (1844, 11234587), (3227, 6419764), (5993, 3456796), (6454, 3209882), (11986, 1728398), (12908, 1604941), (23972, 864199), (41951, 493828), (83902, 246914), (123457, 167804)]