681740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 1451520

約数和(自身を除く): 769780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 383, 445, 766, 890, 1532, 1780, 1915, 3830, 7660, 34087, 68174, 136348, 170435, 340870, 681740]

約数ペア:

[(1, 681740), (2, 340870), (4, 170435), (5, 136348), (10, 68174), (20, 34087), (89, 7660), (178, 3830), (356, 1915), (383, 1780), (445, 1532), (766, 890)]