90316960

素因数分解:

$2^5\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1109}}^1$

素因数の和:1633

約数の個数: 48

約数和(自身を含む): 213985800

約数和(自身を除く): 123668840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 509, 1018, 1109, 2036, 2218, 2545, 4072, 4436, 5090, 5545, 8144, 8872, 10180, 11090, 16288, 17744, 20360, 22180, 35488, 40720, 44360, 81440, 88720, 177440, 564481, 1128962, 2257924, 2822405, 4515848, 5644810, 9031696, 11289620, 18063392, 22579240, 45158480, 90316960]

約数ペア:

[(1, 90316960), (2, 45158480), (4, 22579240), (5, 18063392), (8, 11289620), (10, 9031696), (16, 5644810), (20, 4515848), (32, 2822405), (40, 2257924), (80, 1128962), (160, 564481), (509, 177440), (1018, 88720), (1109, 81440), (2036, 44360), (2218, 40720), (2545, 35488), (4072, 22180), (4436, 20360), (5090, 17744), (5545, 16288), (8144, 11090), (8872, 10180)]