220123246

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{1291}}^1$

素因数の和:1960

約数の個数: 32

約数和(自身を含む): 398142720

約数和(自身を除く): 178019474

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 641, 1282, 1291, 2582, 4487, 8974, 9037, 12179, 18074, 24358, 24529, 49058, 85253, 170506, 171703, 343406, 827531, 1655062, 5792717, 11585434, 15723089, 31446178, 110061623, 220123246]

約数ペア:

[(1, 220123246), (2, 110061623), (7, 31446178), (14, 15723089), (19, 11585434), (38, 5792717), (133, 1655062), (266, 827531), (641, 343406), (1282, 171703), (1291, 170506), (2582, 85253), (4487, 49058), (8974, 24529), (9037, 24358), (12179, 18074)]