12986500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1367}}^1$

素因数の和:1405

約数の個数: 48

約数和(自身を含む): 29877120

約数和(自身を除く): 16890620

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1367, 1900, 2375, 2734, 4750, 5468, 6835, 9500, 13670, 25973, 27340, 34175, 51946, 68350, 103892, 129865, 136700, 170875, 259730, 341750, 519460, 649325, 683500, 1298650, 2597300, 3246625, 6493250, 12986500]

約数ペア:

[(1, 12986500), (2, 6493250), (4, 3246625), (5, 2597300), (10, 1298650), (19, 683500), (20, 649325), (25, 519460), (38, 341750), (50, 259730), (76, 170875), (95, 136700), (100, 129865), (125, 103892), (190, 68350), (250, 51946), (380, 34175), (475, 27340), (500, 25973), (950, 13670), (1367, 9500), (1900, 6835), (2375, 5468), (2734, 4750)]