30711760

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5407}}^1$

素因数の和:5491

約数の個数: 40

約数和(自身を含む): 72423936

約数和(自身を除く): 41712176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5407, 5680, 10814, 21628, 27035, 43256, 54070, 86512, 108140, 216280, 383897, 432560, 767794, 1535588, 1919485, 3071176, 3838970, 6142352, 7677940, 15355880, 30711760]

約数ペア:

[(1, 30711760), (2, 15355880), (4, 7677940), (5, 6142352), (8, 3838970), (10, 3071176), (16, 1919485), (20, 1535588), (40, 767794), (71, 432560), (80, 383897), (142, 216280), (284, 108140), (355, 86512), (568, 54070), (710, 43256), (1136, 27035), (1420, 21628), (2840, 10814), (5407, 5680)]