20976550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{821}}^1$

素因数の和:913

約数の個数: 48

約数和(自身を含む): 45256032

約数和(自身を除く): 24279482

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 73, 146, 175, 350, 365, 511, 730, 821, 1022, 1642, 1825, 2555, 3650, 4105, 5110, 5747, 8210, 11494, 12775, 20525, 25550, 28735, 41050, 57470, 59933, 119866, 143675, 287350, 299665, 419531, 599330, 839062, 1498325, 2097655, 2996650, 4195310, 10488275, 20976550]

約数ペア:

[(1, 20976550), (2, 10488275), (5, 4195310), (7, 2996650), (10, 2097655), (14, 1498325), (25, 839062), (35, 599330), (50, 419531), (70, 299665), (73, 287350), (146, 143675), (175, 119866), (350, 59933), (365, 57470), (511, 41050), (730, 28735), (821, 25550), (1022, 20525), (1642, 12775), (1825, 11494), (2555, 8210), (3650, 5747), (4105, 5110)]