20013004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 21355316

約数列:

[1, 2, 4, 11, 19, 22, 37, 38, 44, 74, 76, 148, 209, 407, 418, 647, 703, 814, 836, 1294, 1406, 1628, 2588, 2812, 7117, 7733, 12293, 14234, 15466, 23939, 24586, 28468, 30932, 47878, 49172, 95756, 135223, 263329, 270446, 454841, 526658, 540892, 909682, 1053316, 1819364, 5003251, 10006502, 20013004]

約数ペア:

[(1, 20013004), (2, 10006502), (4, 5003251), (11, 1819364), (19, 1053316), (22, 909682), (37, 540892), (38, 526658), (44, 454841), (74, 270446), (76, 263329), (148, 135223), (209, 95756), (407, 49172), (418, 47878), (647, 30932), (703, 28468), (814, 24586), (836, 23939), (1294, 15466), (1406, 14234), (1628, 12293), (2588, 7733), (2812, 7117)]