81354884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1229}}^1$

素因数の和:1332

約数の個数: 48

約数和(自身を含む): 163934400

約数和(自身を除く): 82579516

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 67, 76, 134, 247, 268, 494, 871, 988, 1229, 1273, 1742, 2458, 2546, 3484, 4916, 5092, 15977, 16549, 23351, 31954, 33098, 46702, 63908, 66196, 82343, 93404, 164686, 303563, 329372, 607126, 1070459, 1214252, 1564517, 2140918, 3129034, 4281836, 6258068, 20338721, 40677442, 81354884]

約数ペア:

[(1, 81354884), (2, 40677442), (4, 20338721), (13, 6258068), (19, 4281836), (26, 3129034), (38, 2140918), (52, 1564517), (67, 1214252), (76, 1070459), (134, 607126), (247, 329372), (268, 303563), (494, 164686), (871, 93404), (988, 82343), (1229, 66196), (1273, 63908), (1742, 46702), (2458, 33098), (2546, 31954), (3484, 23351), (4916, 16549), (5092, 15977)]