81981550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:286

約数の個数: 96

約数和(自身を含む): 185613120

約数和(自身を除く): 103631570

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 41, 50, 58, 70, 82, 145, 175, 197, 203, 205, 287, 290, 350, 394, 406, 410, 574, 725, 985, 1015, 1025, 1189, 1379, 1435, 1450, 1970, 2030, 2050, 2378, 2758, 2870, 4925, 5075, 5713, 5945, 6895, 7175, 8077, 8323, 9850, 10150, 11426, 11890, 13790, 14350, 16154, 16646, 28565, 29725, 34475, 39991, 40385, 41615, 56539, 57130, 59450, 68950, 79982, 80770, 83230, 113078, 142825, 199955, 201925, 208075, 234233, 282695, 285650, 399910, 403850, 416150, 468466, 565390, 999775, 1171165, 1413475, 1639631, 1999550, 2342330, 2826950, 3279262, 5855825, 8198155, 11711650, 16396310, 40990775, 81981550]

約数ペア:

[(1, 81981550), (2, 40990775), (5, 16396310), (7, 11711650), (10, 8198155), (14, 5855825), (25, 3279262), (29, 2826950), (35, 2342330), (41, 1999550), (50, 1639631), (58, 1413475), (70, 1171165), (82, 999775), (145, 565390), (175, 468466), (197, 416150), (203, 403850), (205, 399910), (287, 285650), (290, 282695), (350, 234233), (394, 208075), (406, 201925), (410, 199955), (574, 142825), (725, 113078), (985, 83230), (1015, 80770), (1025, 79982), (1189, 68950), (1379, 59450), (1435, 57130), (1450, 56539), (1970, 41615), (2030, 40385), (2050, 39991), (2378, 34475), (2758, 29725), (2870, 28565), (4925, 16646), (5075, 16154), (5713, 14350), (5945, 13790), (6895, 11890), (7175, 11426), (8077, 10150), (8323, 9850)]