289320020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{35543}}^1$

素因数の和:35600

約数の個数: 48

約数和(自身を含む): 680738688

約数和(自身を除く): 391418668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 4070, 8140, 35543, 71086, 142172, 177715, 355430, 390973, 710860, 781946, 1315091, 1563892, 1954865, 2630182, 3909730, 5260364, 6575455, 7819460, 13150910, 14466001, 26301820, 28932002, 57864004, 72330005, 144660010, 289320020]

約数ペア:

[(1, 289320020), (2, 144660010), (4, 72330005), (5, 57864004), (10, 28932002), (11, 26301820), (20, 14466001), (22, 13150910), (37, 7819460), (44, 6575455), (55, 5260364), (74, 3909730), (110, 2630182), (148, 1954865), (185, 1563892), (220, 1315091), (370, 781946), (407, 710860), (740, 390973), (814, 355430), (1628, 177715), (2035, 142172), (4070, 71086), (8140, 35543)]