61917680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1086

約数の個数: 80

約数和(自身を含む): 159418368

約数和(自身を除く): 97500688

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 991, 1136, 1420, 1562, 1982, 2840, 3124, 3905, 3964, 4955, 5680, 6248, 7810, 7928, 9910, 10901, 12496, 15620, 15856, 19820, 21802, 31240, 39640, 43604, 54505, 62480, 70361, 79280, 87208, 109010, 140722, 174416, 218020, 281444, 351805, 436040, 562888, 703610, 773971, 872080, 1125776, 1407220, 1547942, 2814440, 3095884, 3869855, 5628880, 6191768, 7739710, 12383536, 15479420, 30958840, 61917680]

約数ペア:

[(1, 61917680), (2, 30958840), (4, 15479420), (5, 12383536), (8, 7739710), (10, 6191768), (11, 5628880), (16, 3869855), (20, 3095884), (22, 2814440), (40, 1547942), (44, 1407220), (55, 1125776), (71, 872080), (80, 773971), (88, 703610), (110, 562888), (142, 436040), (176, 351805), (220, 281444), (284, 218020), (355, 174416), (440, 140722), (568, 109010), (710, 87208), (781, 79280), (880, 70361), (991, 62480), (1136, 54505), (1420, 43604), (1562, 39640), (1982, 31240), (2840, 21802), (3124, 19820), (3905, 15856), (3964, 15620), (4955, 12496), (5680, 10901), (6248, 9910), (7810, 7928)]