2578906540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{18420761}}^1$

素因数の和:18420777

約数の個数: 24

約数和(自身を含む): 6189376032

約数和(自身を除く): 3610469492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 18420761, 36841522, 73683044, 92103805, 128945327, 184207610, 257890654, 368415220, 515781308, 644726635, 1289453270, 2578906540]

約数ペア:

[(1, 2578906540), (2, 1289453270), (4, 644726635), (5, 515781308), (7, 368415220), (10, 257890654), (14, 184207610), (20, 128945327), (28, 92103805), (35, 73683044), (70, 36841522), (140, 18420761)]