2085980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 4826304

約数和(自身を除く): 2740324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 113, 130, 142, 226, 260, 284, 355, 452, 565, 710, 923, 1130, 1420, 1469, 1846, 2260, 2938, 3692, 4615, 5876, 7345, 8023, 9230, 14690, 16046, 18460, 29380, 32092, 40115, 80230, 104299, 160460, 208598, 417196, 521495, 1042990, 2085980]

約数ペア:

[(1, 2085980), (2, 1042990), (4, 521495), (5, 417196), (10, 208598), (13, 160460), (20, 104299), (26, 80230), (52, 40115), (65, 32092), (71, 29380), (113, 18460), (130, 16046), (142, 14690), (226, 9230), (260, 8023), (284, 7345), (355, 5876), (452, 4615), (565, 3692), (710, 2938), (923, 2260), (1130, 1846), (1420, 1469)]