258312220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{3559}}^1$

素因数の和:3778

約数の個数: 48

約数和(自身を含む): 574156800

約数和(自身を除く): 315844580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 191, 380, 382, 764, 955, 1910, 3559, 3629, 3820, 7118, 7258, 14236, 14516, 17795, 18145, 35590, 36290, 67621, 71180, 72580, 135242, 270484, 338105, 676210, 679769, 1352420, 1359538, 2719076, 3398845, 6797690, 12915611, 13595380, 25831222, 51662444, 64578055, 129156110, 258312220]

約数ペア:

[(1, 258312220), (2, 129156110), (4, 64578055), (5, 51662444), (10, 25831222), (19, 13595380), (20, 12915611), (38, 6797690), (76, 3398845), (95, 2719076), (190, 1359538), (191, 1352420), (380, 679769), (382, 676210), (764, 338105), (955, 270484), (1910, 135242), (3559, 72580), (3629, 71180), (3820, 67621), (7118, 36290), (7258, 35590), (14236, 18145), (14516, 17795)]