16988880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{997}}^1$

素因数の和:1084

約数の個数: 80

約数和(自身を含む): 53460864

約数和(自身を除く): 36471984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 997, 1065, 1136, 1420, 1704, 1994, 2130, 2840, 2991, 3408, 3988, 4260, 4985, 5680, 5982, 7976, 8520, 9970, 11964, 14955, 15952, 17040, 19940, 23928, 29910, 39880, 47856, 59820, 70787, 79760, 119640, 141574, 212361, 239280, 283148, 353935, 424722, 566296, 707870, 849444, 1061805, 1132592, 1415740, 1698888, 2123610, 2831480, 3397776, 4247220, 5662960, 8494440, 16988880]

約数ペア:

[(1, 16988880), (2, 8494440), (3, 5662960), (4, 4247220), (5, 3397776), (6, 2831480), (8, 2123610), (10, 1698888), (12, 1415740), (15, 1132592), (16, 1061805), (20, 849444), (24, 707870), (30, 566296), (40, 424722), (48, 353935), (60, 283148), (71, 239280), (80, 212361), (120, 141574), (142, 119640), (213, 79760), (240, 70787), (284, 59820), (355, 47856), (426, 39880), (568, 29910), (710, 23928), (852, 19940), (997, 17040), (1065, 15952), (1136, 14955), (1420, 11964), (1704, 9970), (1994, 8520), (2130, 7976), (2840, 5982), (2991, 5680), (3408, 4985), (3988, 4260)]