12207500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:300

約数の個数: 60

約数和(自身を含む): 28209720

約数和(自身を除く): 16002220

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 257, 380, 475, 500, 514, 625, 950, 1028, 1250, 1285, 1900, 2375, 2500, 2570, 4750, 4883, 5140, 6425, 9500, 9766, 11875, 12850, 19532, 23750, 24415, 25700, 32125, 47500, 48830, 64250, 97660, 122075, 128500, 160625, 244150, 321250, 488300, 610375, 642500, 1220750, 2441500, 3051875, 6103750, 12207500]

約数ペア:

[(1, 12207500), (2, 6103750), (4, 3051875), (5, 2441500), (10, 1220750), (19, 642500), (20, 610375), (25, 488300), (38, 321250), (50, 244150), (76, 160625), (95, 128500), (100, 122075), (125, 97660), (190, 64250), (250, 48830), (257, 47500), (380, 32125), (475, 25700), (500, 24415), (514, 23750), (625, 19532), (950, 12850), (1028, 11875), (1250, 9766), (1285, 9500), (1900, 6425), (2375, 5140), (2500, 4883), (2570, 4750)]