72042800

素因数分解:

$2^4\times 5^2\times {\mathrm{389}}^1\times {\mathrm{463}}^1$

素因数の和:870

約数の個数: 60

約数和(自身を含む): 173902560

約数和(自身を除く): 101859760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 389, 400, 463, 778, 926, 1556, 1852, 1945, 2315, 3112, 3704, 3890, 4630, 6224, 7408, 7780, 9260, 9725, 11575, 15560, 18520, 19450, 23150, 31120, 37040, 38900, 46300, 77800, 92600, 155600, 180107, 185200, 360214, 720428, 900535, 1440856, 1801070, 2881712, 3602140, 4502675, 7204280, 9005350, 14408560, 18010700, 36021400, 72042800]

約数ペア:

[(1, 72042800), (2, 36021400), (4, 18010700), (5, 14408560), (8, 9005350), (10, 7204280), (16, 4502675), (20, 3602140), (25, 2881712), (40, 1801070), (50, 1440856), (80, 900535), (100, 720428), (200, 360214), (389, 185200), (400, 180107), (463, 155600), (778, 92600), (926, 77800), (1556, 46300), (1852, 38900), (1945, 37040), (2315, 31120), (3112, 23150), (3704, 19450), (3890, 18520), (4630, 15560), (6224, 11575), (7408, 9725), (7780, 9260)]