2788045180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{170627}}^1$

素因数の和:170698

約数の個数: 48

約数和(自身を含む): 6306410880

約数和(自身を除く): 3518365700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1634, 3268, 4085, 8170, 16340, 170627, 341254, 682508, 853135, 1706270, 3241913, 3412540, 6483826, 7336961, 12967652, 14673922, 16209565, 29347844, 32419130, 36684805, 64838260, 73369610, 139402259, 146739220, 278804518, 557609036, 697011295, 1394022590, 2788045180]

約数ペア:

[(1, 2788045180), (2, 1394022590), (4, 697011295), (5, 557609036), (10, 278804518), (19, 146739220), (20, 139402259), (38, 73369610), (43, 64838260), (76, 36684805), (86, 32419130), (95, 29347844), (172, 16209565), (190, 14673922), (215, 12967652), (380, 7336961), (430, 6483826), (817, 3412540), (860, 3241913), (1634, 1706270), (3268, 853135), (4085, 682508), (8170, 341254), (16340, 170627)]