80451560440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1259}}^1\times {\mathrm{26189}}^1$

素因数の和:27520

約数の個数: 64

約数和(自身を含む): 184136652000

約数和(自身を除く): 103685091560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 1259, 2440, 2518, 5036, 6295, 10072, 12590, 25180, 26189, 50360, 52378, 76799, 104756, 130945, 153598, 209512, 261890, 307196, 383995, 523780, 614392, 767990, 1047560, 1535980, 1597529, 3071960, 3195058, 6390116, 7987645, 12780232, 15975290, 31950580, 32971951, 63901160, 65943902, 131887804, 164859755, 263775608, 329719510, 659439020, 1318878040, 2011289011, 4022578022, 8045156044, 10056445055, 16090312088, 20112890110, 40225780220, 80451560440]

約数ペア:

[(1, 80451560440), (2, 40225780220), (4, 20112890110), (5, 16090312088), (8, 10056445055), (10, 8045156044), (20, 4022578022), (40, 2011289011), (61, 1318878040), (122, 659439020), (244, 329719510), (305, 263775608), (488, 164859755), (610, 131887804), (1220, 65943902), (1259, 63901160), (2440, 32971951), (2518, 31950580), (5036, 15975290), (6295, 12780232), (10072, 7987645), (12590, 6390116), (25180, 3195058), (26189, 3071960), (50360, 1597529), (52378, 1535980), (76799, 1047560), (104756, 767990), (130945, 614392), (153598, 523780), (209512, 383995), (261890, 307196)]