978170960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{940549}}^1$

素因数の和:940575

約数の個数: 40

約数和(自身を含む): 2449192200

約数和(自身を除く): 1471021240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 940549, 1881098, 3762196, 4702745, 7524392, 9405490, 12227137, 15048784, 18810980, 24454274, 37621960, 48908548, 61135685, 75243920, 97817096, 122271370, 195634192, 244542740, 489085480, 978170960]

約数ペア:

[(1, 978170960), (2, 489085480), (4, 244542740), (5, 195634192), (8, 122271370), (10, 97817096), (13, 75243920), (16, 61135685), (20, 48908548), (26, 37621960), (40, 24454274), (52, 18810980), (65, 15048784), (80, 12227137), (104, 9405490), (130, 7524392), (208, 4702745), (260, 3762196), (520, 1881098), (1040, 940549)]