1019968240

素因数分解:

$2^4\times 5^1\times {\mathrm{12749603}}^1$

素因数の和:12749616

約数の個数: 20

約数和(自身を含む): 2371426344

約数和(自身を除く): 1351458104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12749603, 25499206, 50998412, 63748015, 101996824, 127496030, 203993648, 254992060, 509984120, 1019968240]

約数ペア:

[(1, 1019968240), (2, 509984120), (4, 254992060), (5, 203993648), (8, 127496030), (10, 101996824), (16, 63748015), (20, 50998412), (40, 25499206), (80, 12749603)]