890392900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{217169}}^1$

素因数の和:217224

約数の個数: 36

約数和(自身を含む): 1979287380

約数和(自身を除く): 1088894480

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 217169, 434338, 868676, 1085845, 2171690, 4343380, 5429225, 8903929, 10858450, 17807858, 21716900, 35615716, 44519645, 89039290, 178078580, 222598225, 445196450, 890392900]

約数ペア:

[(1, 890392900), (2, 445196450), (4, 222598225), (5, 178078580), (10, 89039290), (20, 44519645), (25, 35615716), (41, 21716900), (50, 17807858), (82, 10858450), (100, 8903929), (164, 5429225), (205, 4343380), (410, 2171690), (820, 1085845), (1025, 868676), (2050, 434338), (4100, 217169)]