78998800

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{4817}}^1$

素因数の和:4876

約数の個数: 60

約数和(自身を含む): 194464116

約数和(自身を除く): 115465316

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 820, 1025, 1640, 2050, 3280, 4100, 4817, 8200, 9634, 16400, 19268, 24085, 38536, 48170, 77072, 96340, 120425, 192680, 197497, 240850, 385360, 394994, 481700, 789988, 963400, 987485, 1579976, 1926800, 1974970, 3159952, 3949940, 4937425, 7899880, 9874850, 15799760, 19749700, 39499400, 78998800]

約数ペア:

[(1, 78998800), (2, 39499400), (4, 19749700), (5, 15799760), (8, 9874850), (10, 7899880), (16, 4937425), (20, 3949940), (25, 3159952), (40, 1974970), (41, 1926800), (50, 1579976), (80, 987485), (82, 963400), (100, 789988), (164, 481700), (200, 394994), (205, 385360), (328, 240850), (400, 197497), (410, 192680), (656, 120425), (820, 96340), (1025, 77072), (1640, 48170), (2050, 38536), (3280, 24085), (4100, 19268), (4817, 16400), (8200, 9634)]