20178440090

素因数分解:

$2^1\times 5^1\times {\mathrm{761}}^1\times {\mathrm{2651569}}^1$

素因数の和:2652337

約数の個数: 16

約数和(自身を含む): 36368934120

約数和(自身を除く): 16190494030

約数列:

[1, 2, 5, 10, 761, 1522, 3805, 7610, 2651569, 5303138, 13257845, 26515690, 2017844009, 4035688018, 10089220045, 20178440090]

約数ペア:

[(1, 20178440090), (2, 10089220045), (5, 4035688018), (10, 2017844009), (761, 26515690), (1522, 13257845), (3805, 5303138), (7610, 2651569)]