391642250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2011}}^1$

素因数の和:2088

約数の個数: 64

約数和(自身を含む): 790957440

約数和(自身を除く): 399315190

約数列:

[1, 2, 5, 10, 19, 25, 38, 41, 50, 82, 95, 125, 190, 205, 250, 410, 475, 779, 950, 1025, 1558, 2011, 2050, 2375, 3895, 4022, 4750, 5125, 7790, 10055, 10250, 19475, 20110, 38209, 38950, 50275, 76418, 82451, 97375, 100550, 164902, 191045, 194750, 251375, 382090, 412255, 502750, 824510, 955225, 1566569, 1910450, 2061275, 3133138, 4122550, 4776125, 7832845, 9552250, 10306375, 15665690, 20612750, 39164225, 78328450, 195821125, 391642250]

約数ペア:

[(1, 391642250), (2, 195821125), (5, 78328450), (10, 39164225), (19, 20612750), (25, 15665690), (38, 10306375), (41, 9552250), (50, 7832845), (82, 4776125), (95, 4122550), (125, 3133138), (190, 2061275), (205, 1910450), (250, 1566569), (410, 955225), (475, 824510), (779, 502750), (950, 412255), (1025, 382090), (1558, 251375), (2011, 194750), (2050, 191045), (2375, 164902), (3895, 100550), (4022, 97375), (4750, 82451), (5125, 76418), (7790, 50275), (10055, 38950), (10250, 38209), (19475, 20110)]