9997750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 22239360

約数和(自身を除く): 12241610

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 50, 58, 70, 125, 145, 175, 197, 203, 250, 290, 350, 394, 406, 725, 875, 985, 1015, 1379, 1450, 1750, 1970, 2030, 2758, 3625, 4925, 5075, 5713, 6895, 7250, 9850, 10150, 11426, 13790, 24625, 25375, 28565, 34475, 39991, 49250, 50750, 57130, 68950, 79982, 142825, 172375, 199955, 285650, 344750, 399910, 714125, 999775, 1428250, 1999550, 4998875, 9997750]

約数ペア:

[(1, 9997750), (2, 4998875), (5, 1999550), (7, 1428250), (10, 999775), (14, 714125), (25, 399910), (29, 344750), (35, 285650), (50, 199955), (58, 172375), (70, 142825), (125, 79982), (145, 68950), (175, 57130), (197, 50750), (203, 49250), (250, 39991), (290, 34475), (350, 28565), (394, 25375), (406, 24625), (725, 13790), (875, 11426), (985, 10150), (1015, 9850), (1379, 7250), (1450, 6895), (1750, 5713), (1970, 5075), (2030, 4925), (2758, 3625)]