13870220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7621}}^1$

素因数の和:7650

約数の個数: 48

約数和(自身を含む): 35853888

約数和(自身を除く): 21983668

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, 7621, 15242, 30484, 38105, 53347, 76210, 99073, 106694, 152420, 198146, 213388, 266735, 396292, 495365, 533470, 693511, 990730, 1066940, 1387022, 1981460, 2774044, 3467555, 6935110, 13870220]

約数ペア:

[(1, 13870220), (2, 6935110), (4, 3467555), (5, 2774044), (7, 1981460), (10, 1387022), (13, 1066940), (14, 990730), (20, 693511), (26, 533470), (28, 495365), (35, 396292), (52, 266735), (65, 213388), (70, 198146), (91, 152420), (130, 106694), (140, 99073), (182, 76210), (260, 53347), (364, 38105), (455, 30484), (910, 15242), (1820, 7621)]