20647585

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:601

約数の個数: 32

約数和(自身を含む): 30355200

約数和(自身を除く): 9707615

約数列:

[1, 5, 7, 19, 35, 61, 95, 133, 305, 427, 509, 665, 1159, 2135, 2545, 3563, 5795, 8113, 9671, 17815, 31049, 40565, 48355, 67697, 155245, 217343, 338485, 589931, 1086715, 2949655, 4129517, 20647585]

約数ペア:

[(1, 20647585), (5, 4129517), (7, 2949655), (19, 1086715), (35, 589931), (61, 338485), (95, 217343), (133, 155245), (305, 67697), (427, 48355), (509, 40565), (665, 31049), (1159, 17815), (2135, 9671), (2545, 8113), (3563, 5795)]