17990800

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1097}}^1$

素因数の和:1156

約数の個数: 60

約数和(自身を含む): 44317476

約数和(自身を除く): 26326676

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 820, 1025, 1097, 1640, 2050, 2194, 3280, 4100, 4388, 5485, 8200, 8776, 10970, 16400, 17552, 21940, 27425, 43880, 44977, 54850, 87760, 89954, 109700, 179908, 219400, 224885, 359816, 438800, 449770, 719632, 899540, 1124425, 1799080, 2248850, 3598160, 4497700, 8995400, 17990800]

約数ペア:

[(1, 17990800), (2, 8995400), (4, 4497700), (5, 3598160), (8, 2248850), (10, 1799080), (16, 1124425), (20, 899540), (25, 719632), (40, 449770), (41, 438800), (50, 359816), (80, 224885), (82, 219400), (100, 179908), (164, 109700), (200, 89954), (205, 87760), (328, 54850), (400, 44977), (410, 43880), (656, 27425), (820, 21940), (1025, 17552), (1097, 16400), (1640, 10970), (2050, 8776), (2194, 8200), (3280, 5485), (4100, 4388)]