7940425460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{331127}}^1$

素因数の和:331256

約数の個数: 48

約数和(自身を含む): 18357736320

約数和(自身を除く): 10417310860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 4796, 5995, 11990, 23980, 331127, 662254, 1324508, 1655635, 3311270, 3642397, 6622540, 7284794, 14569588, 18211985, 36092843, 36423970, 72185686, 72847940, 144371372, 180464215, 360928430, 397021273, 721856860, 794042546, 1588085092, 1985106365, 3970212730, 7940425460]

約数ペア:

[(1, 7940425460), (2, 3970212730), (4, 1985106365), (5, 1588085092), (10, 794042546), (11, 721856860), (20, 397021273), (22, 360928430), (44, 180464215), (55, 144371372), (109, 72847940), (110, 72185686), (218, 36423970), (220, 36092843), (436, 18211985), (545, 14569588), (1090, 7284794), (1199, 6622540), (2180, 3642397), (2398, 3311270), (4796, 1655635), (5995, 1324508), (11990, 662254), (23980, 331127)]