1990989110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{441461}}^1$

素因数の和:441520

約数の個数: 32

約数和(自身を含む): 4004943264

約数和(自身を除く): 2013954154

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4510, 441461, 882922, 2207305, 4414610, 4856071, 9712142, 18099901, 24280355, 36199802, 48560710, 90499505, 180999010, 199098911, 398197822, 995494555, 1990989110]

約数ペア:

[(1, 1990989110), (2, 995494555), (5, 398197822), (10, 199098911), (11, 180999010), (22, 90499505), (41, 48560710), (55, 36199802), (82, 24280355), (110, 18099901), (205, 9712142), (410, 4856071), (451, 4414610), (902, 2207305), (2255, 882922), (4510, 441461)]