18849790

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 15986690

約数列:

[1, 2, 5, 10, 71, 139, 142, 191, 278, 355, 382, 695, 710, 955, 1390, 1910, 9869, 13561, 19738, 26549, 27122, 49345, 53098, 67805, 98690, 132745, 135610, 265490, 1884979, 3769958, 9424895, 18849790]

約数ペア:

[(1, 18849790), (2, 9424895), (5, 3769958), (10, 1884979), (71, 265490), (139, 135610), (142, 132745), (191, 98690), (278, 67805), (355, 53098), (382, 49345), (695, 27122), (710, 26549), (955, 19738), (1390, 13561), (1910, 9869)]