20187631490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1213}}^1\times {\mathrm{128021}}^1$

素因数の和:129254

約数の個数: 32

約数和(自身を含む): 39165514416

約数和(自身を除く): 18977882926

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1213, 2426, 6065, 12130, 15769, 31538, 78845, 128021, 157690, 256042, 640105, 1280210, 1664273, 3328546, 8321365, 16642730, 155289473, 310578946, 776447365, 1552894730, 2018763149, 4037526298, 10093815745, 20187631490]

約数ペア:

[(1, 20187631490), (2, 10093815745), (5, 4037526298), (10, 2018763149), (13, 1552894730), (26, 776447365), (65, 310578946), (130, 155289473), (1213, 16642730), (2426, 8321365), (6065, 3328546), (12130, 1664273), (15769, 1280210), (31538, 640105), (78845, 256042), (128021, 157690)]