13128500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 144

約数和(自身を含む): 37180416

約数和(自身を除く): 24051916

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 31, 35, 44, 50, 55, 62, 70, 77, 100, 110, 121, 124, 125, 140, 154, 155, 175, 217, 220, 242, 250, 275, 308, 310, 341, 350, 385, 434, 484, 500, 550, 605, 620, 682, 700, 770, 775, 847, 868, 875, 1085, 1100, 1210, 1364, 1375, 1540, 1550, 1694, 1705, 1750, 1925, 2170, 2387, 2420, 2750, 3025, 3100, 3388, 3410, 3500, 3751, 3850, 3875, 4235, 4340, 4774, 5425, 5500, 6050, 6820, 7502, 7700, 7750, 8470, 8525, 9548, 9625, 10850, 11935, 12100, 15004, 15125, 15500, 16940, 17050, 18755, 19250, 21175, 21700, 23870, 26257, 27125, 30250, 34100, 37510, 38500, 42350, 42625, 47740, 52514, 54250, 59675, 60500, 75020, 84700, 85250, 93775, 105028, 105875, 108500, 119350, 131285, 170500, 187550, 211750, 238700, 262570, 298375, 375100, 423500, 468875, 525140, 596750, 656425, 937750, 1193500, 1312850, 1875500, 2625700, 3282125, 6564250, 13128500]

約数ペア:

[(1, 13128500), (2, 6564250), (4, 3282125), (5, 2625700), (7, 1875500), (10, 1312850), (11, 1193500), (14, 937750), (20, 656425), (22, 596750), (25, 525140), (28, 468875), (31, 423500), (35, 375100), (44, 298375), (50, 262570), (55, 238700), (62, 211750), (70, 187550), (77, 170500), (100, 131285), (110, 119350), (121, 108500), (124, 105875), (125, 105028), (140, 93775), (154, 85250), (155, 84700), (175, 75020), (217, 60500), (220, 59675), (242, 54250), (250, 52514), (275, 47740), (308, 42625), (310, 42350), (341, 38500), (350, 37510), (385, 34100), (434, 30250), (484, 27125), (500, 26257), (550, 23870), (605, 21700), (620, 21175), (682, 19250), (700, 18755), (770, 17050), (775, 16940), (847, 15500), (868, 15125), (875, 15004), (1085, 12100), (1100, 11935), (1210, 10850), (1364, 9625), (1375, 9548), (1540, 8525), (1550, 8470), (1694, 7750), (1705, 7700), (1750, 7502), (1925, 6820), (2170, 6050), (2387, 5500), (2420, 5425), (2750, 4774), (3025, 4340), (3100, 4235), (3388, 3875), (3410, 3850), (3500, 3751)]