20520945055

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{15619}}^1$

素因数の和:15724

約数の個数: 64

約数和(自身を含む): 29757974400

約数和(自身を除く): 9237029345

約数列:

[1, 5, 13, 17, 29, 41, 65, 85, 145, 205, 221, 377, 493, 533, 697, 1105, 1189, 1885, 2465, 2665, 3485, 5945, 6409, 9061, 15457, 15619, 20213, 32045, 45305, 77285, 78095, 101065, 203047, 262769, 265523, 452951, 640379, 1015235, 1313845, 1327615, 2264755, 3201895, 3451799, 5888363, 7700167, 8324927, 10886443, 17258995, 18570991, 29441815, 38500835, 41624635, 54432215, 92854955, 100102171, 141523759, 241422883, 315706847, 500510855, 707618795, 1207114415, 1578534235, 4104189011, 20520945055]

約数ペア:

[(1, 20520945055), (5, 4104189011), (13, 1578534235), (17, 1207114415), (29, 707618795), (41, 500510855), (65, 315706847), (85, 241422883), (145, 141523759), (205, 100102171), (221, 92854955), (377, 54432215), (493, 41624635), (533, 38500835), (697, 29441815), (1105, 18570991), (1189, 17258995), (1885, 10886443), (2465, 8324927), (2665, 7700167), (3485, 5888363), (5945, 3451799), (6409, 3201895), (9061, 2264755), (15457, 1327615), (15619, 1313845), (20213, 1015235), (32045, 640379), (45305, 452951), (77285, 265523), (78095, 262769), (101065, 203047)]