15720047500

素因数分解:

$2^2\times 5^4\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{569}}^1$

素因数の和:893

約数の個数: 120

約数和(自身を含む): 35374988880

約数和(自身を除く): 19654941380

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 257, 430, 500, 514, 569, 625, 860, 1028, 1075, 1138, 1250, 1285, 2150, 2276, 2500, 2570, 2845, 4300, 5140, 5375, 5690, 6425, 10750, 11051, 11380, 12850, 14225, 21500, 22102, 24467, 25700, 26875, 28450, 32125, 44204, 48934, 53750, 55255, 56900, 64250, 71125, 97868, 107500, 110510, 122335, 128500, 142250, 146233, 160625, 221020, 244670, 276275, 284500, 292466, 321250, 355625, 489340, 552550, 584932, 611675, 642500, 711250, 731165, 1105100, 1223350, 1381375, 1422500, 1462330, 2446700, 2762750, 2924660, 3058375, 3655825, 5525500, 6116750, 6288019, 6906875, 7311650, 12233500, 12576038, 13813750, 14623300, 15291875, 18279125, 25152076, 27627500, 30583750, 31440095, 36558250, 61167500, 62880190, 73116500, 91395625, 125760380, 157200475, 182791250, 314400950, 365582500, 628801900, 786002375, 1572004750, 3144009500, 3930011875, 7860023750, 15720047500]

約数ペア:

[(1, 15720047500), (2, 7860023750), (4, 3930011875), (5, 3144009500), (10, 1572004750), (20, 786002375), (25, 628801900), (43, 365582500), (50, 314400950), (86, 182791250), (100, 157200475), (125, 125760380), (172, 91395625), (215, 73116500), (250, 62880190), (257, 61167500), (430, 36558250), (500, 31440095), (514, 30583750), (569, 27627500), (625, 25152076), (860, 18279125), (1028, 15291875), (1075, 14623300), (1138, 13813750), (1250, 12576038), (1285, 12233500), (2150, 7311650), (2276, 6906875), (2500, 6288019), (2570, 6116750), (2845, 5525500), (4300, 3655825), (5140, 3058375), (5375, 2924660), (5690, 2762750), (6425, 2446700), (10750, 1462330), (11051, 1422500), (11380, 1381375), (12850, 1223350), (14225, 1105100), (21500, 731165), (22102, 711250), (24467, 642500), (25700, 611675), (26875, 584932), (28450, 552550), (32125, 489340), (44204, 355625), (48934, 321250), (53750, 292466), (55255, 284500), (56900, 276275), (64250, 244670), (71125, 221020), (97868, 160625), (107500, 146233), (110510, 142250), (122335, 128500)]