320139956

素因数分解:

$2^2\times {\mathrm{61}}^2\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:420

約数の個数: 36

約数和(自身を含む): 577391724

約数和(自身を除く): 257251768

約数列:

[1, 2, 4, 61, 122, 137, 157, 244, 274, 314, 548, 628, 3721, 7442, 8357, 9577, 14884, 16714, 19154, 21509, 33428, 38308, 43018, 86036, 509777, 584197, 1019554, 1168394, 1312049, 2039108, 2336788, 2624098, 5248196, 80034989, 160069978, 320139956]

約数ペア:

[(1, 320139956), (2, 160069978), (4, 80034989), (61, 5248196), (122, 2624098), (137, 2336788), (157, 2039108), (244, 1312049), (274, 1168394), (314, 1019554), (548, 584197), (628, 509777), (3721, 86036), (7442, 43018), (8357, 38308), (9577, 33428), (14884, 21509), (16714, 19154)]