201920080

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61561}}^1$

素因数の和:61615

約数の個数: 40

約数和(自身を含む): 480922344

約数和(自身を除く): 279002264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 61561, 123122, 246244, 307805, 492488, 615610, 984976, 1231220, 2462440, 2524001, 4924880, 5048002, 10096004, 12620005, 20192008, 25240010, 40384016, 50480020, 100960040, 201920080]

約数ペア:

[(1, 201920080), (2, 100960040), (4, 50480020), (5, 40384016), (8, 25240010), (10, 20192008), (16, 12620005), (20, 10096004), (40, 5048002), (41, 4924880), (80, 2524001), (82, 2462440), (164, 1231220), (205, 984976), (328, 615610), (410, 492488), (656, 307805), (820, 246244), (1640, 123122), (3280, 61561)]