200080

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:115

約数の個数: 40

約数和(自身を含む): 484344

約数和(自身を除く): 284264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 61, 80, 82, 122, 164, 205, 244, 305, 328, 410, 488, 610, 656, 820, 976, 1220, 1640, 2440, 2501, 3280, 4880, 5002, 10004, 12505, 20008, 25010, 40016, 50020, 100040, 200080]

約数ペア:

[(1, 200080), (2, 100040), (4, 50020), (5, 40016), (8, 25010), (10, 20008), (16, 12505), (20, 10004), (40, 5002), (41, 4880), (61, 3280), (80, 2501), (82, 2440), (122, 1640), (164, 1220), (205, 976), (244, 820), (305, 656), (328, 610), (410, 488)]