420954004

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{1097}}^1$

素因数の和:1264

約数の個数: 48

約数和(自身を含む): 795408768

約数和(自身を除く): 374454764

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 97, 172, 194, 388, 989, 1097, 1978, 2194, 2231, 3956, 4171, 4388, 4462, 8342, 8924, 16684, 25231, 47171, 50462, 94342, 95933, 100924, 106409, 188684, 191866, 212818, 383732, 425636, 1084933, 2169866, 2447407, 4339732, 4575587, 4894814, 9151174, 9789628, 18302348, 105238501, 210477002, 420954004]

約数ペア:

[(1, 420954004), (2, 210477002), (4, 105238501), (23, 18302348), (43, 9789628), (46, 9151174), (86, 4894814), (92, 4575587), (97, 4339732), (172, 2447407), (194, 2169866), (388, 1084933), (989, 425636), (1097, 383732), (1978, 212818), (2194, 191866), (2231, 188684), (3956, 106409), (4171, 100924), (4388, 95933), (4462, 94342), (8342, 50462), (8924, 47171), (16684, 25231)]