128675900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{44371}}^1$

素因数の和:44414

約数の個数: 36

約数和(自身を含む): 288861720

約数和(自身を除く): 160185820

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 44371, 88742, 177484, 221855, 443710, 887420, 1109275, 1286759, 2218550, 2573518, 4437100, 5147036, 6433795, 12867590, 25735180, 32168975, 64337950, 128675900]

約数ペア:

[(1, 128675900), (2, 64337950), (4, 32168975), (5, 25735180), (10, 12867590), (20, 6433795), (25, 5147036), (29, 4437100), (50, 2573518), (58, 2218550), (100, 1286759), (116, 1109275), (145, 887420), (290, 443710), (580, 221855), (725, 177484), (1450, 88742), (2900, 44371)]