42155980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{26681}}^1$

素因数の和:26769

約数の個数: 24

約数和(自身を含む): 89651520

約数和(自身を除く): 47495540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 26681, 53362, 106724, 133405, 266810, 533620, 2107799, 4215598, 8431196, 10538995, 21077990, 42155980]

約数ペア:

[(1, 42155980), (2, 21077990), (4, 10538995), (5, 8431196), (10, 4215598), (20, 2107799), (79, 533620), (158, 266810), (316, 133405), (395, 106724), (790, 53362), (1580, 26681)]