39380720

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5531}}^1$

素因数の和:5633

約数の個数: 40

約数和(自身を含む): 92605680

約数和(自身を除く): 53224960

約数列:

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

約数ペア:

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