2470640

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:449

約数の個数: 40

約数和(自身を含む): 5825520

約数和(自身を除く): 3354880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 347, 356, 445, 694, 712, 890, 1388, 1424, 1735, 1780, 2776, 3470, 3560, 5552, 6940, 7120, 13880, 27760, 30883, 61766, 123532, 154415, 247064, 308830, 494128, 617660, 1235320, 2470640]

約数ペア:

[(1, 2470640), (2, 1235320), (4, 617660), (5, 494128), (8, 308830), (10, 247064), (16, 154415), (20, 123532), (40, 61766), (80, 30883), (89, 27760), (178, 13880), (347, 7120), (356, 6940), (445, 5552), (694, 3560), (712, 3470), (890, 2776), (1388, 1780), (1424, 1735)]