78761440

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5531}}^1$

素因数の和:5635

約数の個数: 48

約数和(自身を含む): 188198640

約数和(自身を除く): 109437200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 5531, 7120, 11062, 14240, 22124, 27655, 44248, 55310, 88496, 110620, 176992, 221240, 442480, 492259, 884960, 984518, 1969036, 2461295, 3938072, 4922590, 7876144, 9845180, 15752288, 19690360, 39380720, 78761440]

約数ペア:

[(1, 78761440), (2, 39380720), (4, 19690360), (5, 15752288), (8, 9845180), (10, 7876144), (16, 4922590), (20, 3938072), (32, 2461295), (40, 1969036), (80, 984518), (89, 884960), (160, 492259), (178, 442480), (356, 221240), (445, 176992), (712, 110620), (890, 88496), (1424, 55310), (1780, 44248), (2848, 27655), (3560, 22124), (5531, 14240), (7120, 11062)]