7581380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 17055360

約数和(自身を除く): 9473980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 281, 284, 355, 380, 562, 710, 1124, 1349, 1405, 1420, 2698, 2810, 5339, 5396, 5620, 6745, 10678, 13490, 19951, 21356, 26695, 26980, 39902, 53390, 79804, 99755, 106780, 199510, 379069, 399020, 758138, 1516276, 1895345, 3790690, 7581380]

約数ペア:

[(1, 7581380), (2, 3790690), (4, 1895345), (5, 1516276), (10, 758138), (19, 399020), (20, 379069), (38, 199510), (71, 106780), (76, 99755), (95, 79804), (142, 53390), (190, 39902), (281, 26980), (284, 26695), (355, 21356), (380, 19951), (562, 13490), (710, 10678), (1124, 6745), (1349, 5620), (1405, 5396), (1420, 5339), (2698, 2810)]