31490820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1277}}^1$

素因数の和:1429

約数の個数: 72

約数和(自身を含む): 96294744

約数和(自身を除く): 64803924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 137, 180, 274, 411, 548, 685, 822, 1233, 1277, 1370, 1644, 2055, 2466, 2554, 2740, 3831, 4110, 4932, 5108, 6165, 6385, 7662, 8220, 11493, 12330, 12770, 15324, 19155, 22986, 24660, 25540, 38310, 45972, 57465, 76620, 114930, 174949, 229860, 349898, 524847, 699796, 874745, 1049694, 1574541, 1749490, 2099388, 2624235, 3149082, 3498980, 5248470, 6298164, 7872705, 10496940, 15745410, 31490820]

約数ペア:

[(1, 31490820), (2, 15745410), (3, 10496940), (4, 7872705), (5, 6298164), (6, 5248470), (9, 3498980), (10, 3149082), (12, 2624235), (15, 2099388), (18, 1749490), (20, 1574541), (30, 1049694), (36, 874745), (45, 699796), (60, 524847), (90, 349898), (137, 229860), (180, 174949), (274, 114930), (411, 76620), (548, 57465), (685, 45972), (822, 38310), (1233, 25540), (1277, 24660), (1370, 22986), (1644, 19155), (2055, 15324), (2466, 12770), (2554, 12330), (2740, 11493), (3831, 8220), (4110, 7662), (4932, 6385), (5108, 6165)]