25620080

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:234

約数の個数: 80

約数和(自身を含む): 62433504

約数和(自身を除く): 36813424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 73, 80, 82, 107, 146, 164, 205, 214, 292, 328, 365, 410, 428, 535, 584, 656, 730, 820, 856, 1070, 1168, 1460, 1640, 1712, 2140, 2920, 2993, 3280, 4280, 4387, 5840, 5986, 7811, 8560, 8774, 11972, 14965, 15622, 17548, 21935, 23944, 29930, 31244, 35096, 39055, 43870, 47888, 59860, 62488, 70192, 78110, 87740, 119720, 124976, 156220, 175480, 239440, 312440, 320251, 350960, 624880, 640502, 1281004, 1601255, 2562008, 3202510, 5124016, 6405020, 12810040, 25620080]

約数ペア:

[(1, 25620080), (2, 12810040), (4, 6405020), (5, 5124016), (8, 3202510), (10, 2562008), (16, 1601255), (20, 1281004), (40, 640502), (41, 624880), (73, 350960), (80, 320251), (82, 312440), (107, 239440), (146, 175480), (164, 156220), (205, 124976), (214, 119720), (292, 87740), (328, 78110), (365, 70192), (410, 62488), (428, 59860), (535, 47888), (584, 43870), (656, 39055), (730, 35096), (820, 31244), (856, 29930), (1070, 23944), (1168, 21935), (1460, 17548), (1640, 15622), (1712, 14965), (2140, 11972), (2920, 8774), (2993, 8560), (3280, 7811), (4280, 5986), (4387, 5840)]