16800315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^2$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 31958784

約数和(自身を除く): 15158469

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 61, 105, 129, 183, 215, 301, 305, 427, 645, 903, 915, 1281, 1505, 2135, 2623, 3721, 4515, 6405, 7869, 11163, 13115, 18361, 18605, 26047, 39345, 55083, 55815, 78141, 91805, 130235, 160003, 275415, 390705, 480009, 800015, 1120021, 2400045, 3360063, 5600105, 16800315]

約数ペア:

[(1, 16800315), (3, 5600105), (5, 3360063), (7, 2400045), (15, 1120021), (21, 800015), (35, 480009), (43, 390705), (61, 275415), (105, 160003), (129, 130235), (183, 91805), (215, 78141), (301, 55815), (305, 55083), (427, 39345), (645, 26047), (903, 18605), (915, 18361), (1281, 13115), (1505, 11163), (2135, 7869), (2623, 6405), (3721, 4515)]