18734640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{311}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 58496256

約数和(自身を除く): 39761616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 251, 311, 502, 622, 753, 933, 1004, 1244, 1255, 1506, 1555, 1866, 2008, 2488, 2510, 3012, 3110, 3732, 3765, 4016, 4665, 4976, 5020, 6024, 6220, 7464, 7530, 9330, 10040, 12048, 12440, 14928, 15060, 18660, 20080, 24880, 30120, 37320, 60240, 74640, 78061, 156122, 234183, 312244, 390305, 468366, 624488, 780610, 936732, 1170915, 1248976, 1561220, 1873464, 2341830, 3122440, 3746928, 4683660, 6244880, 9367320, 18734640]

約数ペア:

[(1, 18734640), (2, 9367320), (3, 6244880), (4, 4683660), (5, 3746928), (6, 3122440), (8, 2341830), (10, 1873464), (12, 1561220), (15, 1248976), (16, 1170915), (20, 936732), (24, 780610), (30, 624488), (40, 468366), (48, 390305), (60, 312244), (80, 234183), (120, 156122), (240, 78061), (251, 74640), (311, 60240), (502, 37320), (622, 30120), (753, 24880), (933, 20080), (1004, 18660), (1244, 15060), (1255, 14928), (1506, 12440), (1555, 12048), (1866, 10040), (2008, 9330), (2488, 7530), (2510, 7464), (3012, 6220), (3110, 6024), (3732, 5020), (3765, 4976), (4016, 4665)]