399871987196

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{16069}}^1\times {\mathrm{7159}}^1$

素因数の和:23322

約数の個数: 48

約数和(自身を含む): 773211264000

約数和(自身を除く): 373339276804

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 7159, 14318, 16069, 28636, 32138, 64276, 78749, 157498, 176759, 314996, 353518, 565561, 707036, 1131122, 1269451, 2262244, 2538902, 5077804, 6221171, 12442342, 13963961, 24884684, 27927922, 55855844, 115037971, 230075942, 460151884, 1265417681, 2530835362, 5061670724, 9087999709, 18175999418, 36351998836, 99967996799, 199935993598, 399871987196]

約数ペア:

[(1, 399871987196), (2, 199935993598), (4, 99967996799), (11, 36351998836), (22, 18175999418), (44, 9087999709), (79, 5061670724), (158, 2530835362), (316, 1265417681), (869, 460151884), (1738, 230075942), (3476, 115037971), (7159, 55855844), (14318, 27927922), (16069, 24884684), (28636, 13963961), (32138, 12442342), (64276, 6221171), (78749, 5077804), (157498, 2538902), (176759, 2262244), (314996, 1269451), (353518, 1131122), (565561, 707036)]