17919280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11789}}^1$

素因数の和:11821

約数の個数: 40

約数和(自身を含む): 43858800

約数和(自身を除く): 25939520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 11789, 23578, 47156, 58945, 94312, 117890, 188624, 223991, 235780, 447982, 471560, 895964, 943120, 1119955, 1791928, 2239910, 3583856, 4479820, 8959640, 17919280]

約数ペア:

[(1, 17919280), (2, 8959640), (4, 4479820), (5, 3583856), (8, 2239910), (10, 1791928), (16, 1119955), (19, 943120), (20, 895964), (38, 471560), (40, 447982), (76, 235780), (80, 223991), (95, 188624), (152, 117890), (190, 94312), (304, 58945), (380, 47156), (760, 23578), (1520, 11789)]