12960220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7121}}^1$

素因数の和:7150

約数の個数: 48

約数和(自身を含む): 33501888

約数和(自身を除く): 20541668

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 7121, 14242, 28484, 35605, 49847, 71210, 92573, 99694, 142420, 185146, 199388, 249235, 370292, 462865, 498470, 648011, 925730, 996940, 1296022, 1851460, 2592044, 3240055, 6480110, 12960220]

約数ペア:

[(1, 12960220), (2, 6480110), (4, 3240055), (5, 2592044), (7, 1851460), (10, 1296022), (13, 996940), (14, 925730), (20, 648011), (26, 498470), (28, 462865), (35, 370292), (52, 249235), (65, 199388), (70, 185146), (91, 142420), (130, 99694), (140, 92573), (182, 71210), (260, 49847), (364, 35605), (455, 28484), (910, 14242), (1820, 7121)]