39977950

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:469

約数の個数: 48

約数和(自身を含む): 78120000

約数和(自身を除く): 38142050

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 79, 145, 158, 290, 349, 395, 698, 725, 790, 1450, 1745, 1975, 2291, 3490, 3950, 4582, 8725, 10121, 11455, 17450, 20242, 22910, 27571, 50605, 55142, 57275, 101210, 114550, 137855, 253025, 275710, 506050, 689275, 799559, 1378550, 1599118, 3997795, 7995590, 19988975, 39977950]

約数ペア:

[(1, 39977950), (2, 19988975), (5, 7995590), (10, 3997795), (25, 1599118), (29, 1378550), (50, 799559), (58, 689275), (79, 506050), (145, 275710), (158, 253025), (290, 137855), (349, 114550), (395, 101210), (698, 57275), (725, 55142), (790, 50605), (1450, 27571), (1745, 22910), (1975, 20242), (2291, 17450), (3490, 11455), (3950, 10121), (4582, 8725)]