404957950

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:901

約数の個数: 48

約数和(自身を含む): 768790080

約数和(自身を除く): 363832130

約数列:

[1, 2, 5, 10, 25, 50, 79, 157, 158, 314, 395, 653, 785, 790, 1306, 1570, 1975, 3265, 3925, 3950, 6530, 7850, 12403, 16325, 24806, 32650, 51587, 62015, 102521, 103174, 124030, 205042, 257935, 310075, 512605, 515870, 620150, 1025210, 1289675, 2563025, 2579350, 5126050, 8099159, 16198318, 40495795, 80991590, 202478975, 404957950]

約数ペア:

[(1, 404957950), (2, 202478975), (5, 80991590), (10, 40495795), (25, 16198318), (50, 8099159), (79, 5126050), (157, 2579350), (158, 2563025), (314, 1289675), (395, 1025210), (653, 620150), (785, 515870), (790, 512605), (1306, 310075), (1570, 257935), (1975, 205042), (3265, 124030), (3925, 103174), (3950, 102521), (6530, 62015), (7850, 51587), (12403, 32650), (16325, 24806)]