2019913900

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{311}}^1\times {\mathrm{607}}^1$

素因数の和:1039

約数の個数: 72

約数和(自身を含む): 4445715456

約数和(自身を除く): 2425801556

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 311, 428, 535, 607, 622, 1070, 1214, 1244, 1555, 2140, 2428, 2675, 3035, 3110, 5350, 6070, 6220, 7775, 10700, 12140, 15175, 15550, 30350, 31100, 33277, 60700, 64949, 66554, 129898, 133108, 166385, 188777, 259796, 324745, 332770, 377554, 649490, 665540, 755108, 831925, 943885, 1298980, 1623725, 1663850, 1887770, 3247450, 3327700, 3775540, 4719425, 6494900, 9438850, 18877700, 20199139, 40398278, 80796556, 100995695, 201991390, 403982780, 504978475, 1009956950, 2019913900]

約数ペア:

[(1, 2019913900), (2, 1009956950), (4, 504978475), (5, 403982780), (10, 201991390), (20, 100995695), (25, 80796556), (50, 40398278), (100, 20199139), (107, 18877700), (214, 9438850), (311, 6494900), (428, 4719425), (535, 3775540), (607, 3327700), (622, 3247450), (1070, 1887770), (1214, 1663850), (1244, 1623725), (1555, 1298980), (2140, 943885), (2428, 831925), (2675, 755108), (3035, 665540), (3110, 649490), (5350, 377554), (6070, 332770), (6220, 324745), (7775, 259796), (10700, 188777), (12140, 166385), (15175, 133108), (15550, 129898), (30350, 66554), (31100, 64949), (33277, 60700)]