71688920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{24551}}^1$

素因数の和:24635

約数の個数: 32

約数和(自身を含む): 163516320

約数和(自身を除く): 91827400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 24551, 49102, 98204, 122755, 196408, 245510, 491020, 982040, 1792223, 3584446, 7168892, 8961115, 14337784, 17922230, 35844460, 71688920]

約数ペア:

[(1, 71688920), (2, 35844460), (4, 17922230), (5, 14337784), (8, 8961115), (10, 7168892), (20, 3584446), (40, 1792223), (73, 982040), (146, 491020), (292, 245510), (365, 196408), (584, 122755), (730, 98204), (1460, 49102), (2920, 24551)]