978189020

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{419}}^1\times {\mathrm{1033}}^1$

素因数の和:1574

約数の個数: 48

約数和(自身を含む): 2079332640

約数和(自身を除く): 1101143620

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 419, 452, 565, 838, 1033, 1130, 1676, 2066, 2095, 2260, 4132, 4190, 5165, 8380, 10330, 20660, 47347, 94694, 116729, 189388, 233458, 236735, 432827, 466916, 473470, 583645, 865654, 946940, 1167290, 1731308, 2164135, 2334580, 4328270, 8656540, 48909451, 97818902, 195637804, 244547255, 489094510, 978189020]

約数ペア:

[(1, 978189020), (2, 489094510), (4, 244547255), (5, 195637804), (10, 97818902), (20, 48909451), (113, 8656540), (226, 4328270), (419, 2334580), (452, 2164135), (565, 1731308), (838, 1167290), (1033, 946940), (1130, 865654), (1676, 583645), (2066, 473470), (2095, 466916), (2260, 432827), (4132, 236735), (4190, 233458), (5165, 189388), (8380, 116729), (10330, 94694), (20660, 47347)]