20847650

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:299

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 19864030

約数列:

[1, 2, 5, 10, 25, 37, 50, 59, 74, 118, 185, 191, 295, 370, 382, 590, 925, 955, 1475, 1850, 1910, 2183, 2950, 4366, 4775, 7067, 9550, 10915, 11269, 14134, 21830, 22538, 35335, 54575, 56345, 70670, 109150, 112690, 176675, 281725, 353350, 416953, 563450, 833906, 2084765, 4169530, 10423825, 20847650]

約数ペア:

[(1, 20847650), (2, 10423825), (5, 4169530), (10, 2084765), (25, 833906), (37, 563450), (50, 416953), (59, 353350), (74, 281725), (118, 176675), (185, 112690), (191, 109150), (295, 70670), (370, 56345), (382, 54575), (590, 35335), (925, 22538), (955, 21830), (1475, 14134), (1850, 11269), (1910, 10915), (2183, 9550), (2950, 7067), (4366, 4775)]