87217900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 241984512

約数和(自身を除く): 154766612

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 47, 50, 55, 70, 77, 94, 100, 110, 140, 154, 175, 188, 220, 235, 241, 275, 308, 329, 350, 385, 470, 482, 517, 550, 658, 700, 770, 940, 964, 1034, 1100, 1175, 1205, 1316, 1540, 1645, 1687, 1925, 2068, 2350, 2410, 2585, 2651, 3290, 3374, 3619, 3850, 4700, 4820, 5170, 5302, 6025, 6580, 6748, 7238, 7700, 8225, 8435, 10340, 10604, 11327, 12050, 12925, 13255, 14476, 16450, 16870, 18095, 18557, 22654, 24100, 25850, 26510, 32900, 33740, 36190, 37114, 42175, 45308, 51700, 53020, 56635, 66275, 72380, 74228, 79289, 84350, 90475, 92785, 113270, 124597, 132550, 158578, 168700, 180950, 185570, 226540, 249194, 265100, 283175, 317156, 361900, 371140, 396445, 463925, 498388, 566350, 622985, 792890, 872179, 927850, 1132700, 1245970, 1585780, 1744358, 1855700, 1982225, 2491940, 3114925, 3488716, 3964450, 4360895, 6229850, 7928900, 8721790, 12459700, 17443580, 21804475, 43608950, 87217900]

約数ペア:

[(1, 87217900), (2, 43608950), (4, 21804475), (5, 17443580), (7, 12459700), (10, 8721790), (11, 7928900), (14, 6229850), (20, 4360895), (22, 3964450), (25, 3488716), (28, 3114925), (35, 2491940), (44, 1982225), (47, 1855700), (50, 1744358), (55, 1585780), (70, 1245970), (77, 1132700), (94, 927850), (100, 872179), (110, 792890), (140, 622985), (154, 566350), (175, 498388), (188, 463925), (220, 396445), (235, 371140), (241, 361900), (275, 317156), (308, 283175), (329, 265100), (350, 249194), (385, 226540), (470, 185570), (482, 180950), (517, 168700), (550, 158578), (658, 132550), (700, 124597), (770, 113270), (940, 92785), (964, 90475), (1034, 84350), (1100, 79289), (1175, 74228), (1205, 72380), (1316, 66275), (1540, 56635), (1645, 53020), (1687, 51700), (1925, 45308), (2068, 42175), (2350, 37114), (2410, 36190), (2585, 33740), (2651, 32900), (3290, 26510), (3374, 25850), (3619, 24100), (3850, 22654), (4700, 18557), (4820, 18095), (5170, 16870), (5302, 16450), (6025, 14476), (6580, 13255), (6748, 12925), (7238, 12050), (7700, 11327), (8225, 10604), (8435, 10340)]