18078500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 45601920

約数和(自身を除く): 27523420

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 125, 173, 190, 209, 220, 250, 275, 346, 380, 418, 475, 500, 550, 692, 836, 865, 950, 1045, 1100, 1375, 1730, 1900, 1903, 2090, 2375, 2750, 3287, 3460, 3806, 4180, 4325, 4750, 5225, 5500, 6574, 7612, 8650, 9500, 9515, 10450, 13148, 16435, 17300, 19030, 20900, 21625, 26125, 32870, 36157, 38060, 43250, 47575, 52250, 65740, 72314, 82175, 86500, 95150, 104500, 144628, 164350, 180785, 190300, 237875, 328700, 361570, 410875, 475750, 723140, 821750, 903925, 951500, 1643500, 1807850, 3615700, 4519625, 9039250, 18078500]

約数ペア:

[(1, 18078500), (2, 9039250), (4, 4519625), (5, 3615700), (10, 1807850), (11, 1643500), (19, 951500), (20, 903925), (22, 821750), (25, 723140), (38, 475750), (44, 410875), (50, 361570), (55, 328700), (76, 237875), (95, 190300), (100, 180785), (110, 164350), (125, 144628), (173, 104500), (190, 95150), (209, 86500), (220, 82175), (250, 72314), (275, 65740), (346, 52250), (380, 47575), (418, 43250), (475, 38060), (500, 36157), (550, 32870), (692, 26125), (836, 21625), (865, 20900), (950, 19030), (1045, 17300), (1100, 16435), (1375, 13148), (1730, 10450), (1900, 9515), (1903, 9500), (2090, 8650), (2375, 7612), (2750, 6574), (3287, 5500), (3460, 5225), (3806, 4750), (4180, 4325)]