489891440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{16963}}^1$

素因数の和:17014

約数の個数: 60

約数和(自身を含む): 1202170824

約数和(自身を除く): 712279384

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2888, 3610, 5776, 7220, 14440, 16963, 28880, 33926, 67852, 84815, 135704, 169630, 271408, 322297, 339260, 644594, 678520, 1289188, 1357040, 1611485, 2578376, 3222970, 5156752, 6123643, 6445940, 12247286, 12891880, 24494572, 25783760, 30618215, 48989144, 61236430, 97978288, 122472860, 244945720, 489891440]

約数ペア:

[(1, 489891440), (2, 244945720), (4, 122472860), (5, 97978288), (8, 61236430), (10, 48989144), (16, 30618215), (19, 25783760), (20, 24494572), (38, 12891880), (40, 12247286), (76, 6445940), (80, 6123643), (95, 5156752), (152, 3222970), (190, 2578376), (304, 1611485), (361, 1357040), (380, 1289188), (722, 678520), (760, 644594), (1444, 339260), (1520, 322297), (1805, 271408), (2888, 169630), (3610, 135704), (5776, 84815), (7220, 67852), (14440, 33926), (16963, 28880)]