20434810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 43110144

約数和(自身を除く): 22675334

約数列:

[1, 2, 5, 10, 11, 22, 23, 41, 46, 55, 82, 110, 115, 197, 205, 230, 253, 394, 410, 451, 506, 902, 943, 985, 1265, 1886, 1970, 2167, 2255, 2530, 4334, 4510, 4531, 4715, 8077, 9062, 9430, 10373, 10835, 16154, 20746, 21670, 22655, 40385, 45310, 49841, 51865, 80770, 88847, 99682, 103730, 177694, 185771, 249205, 371542, 444235, 498410, 888470, 928855, 1857710, 2043481, 4086962, 10217405, 20434810]

約数ペア:

[(1, 20434810), (2, 10217405), (5, 4086962), (10, 2043481), (11, 1857710), (22, 928855), (23, 888470), (41, 498410), (46, 444235), (55, 371542), (82, 249205), (110, 185771), (115, 177694), (197, 103730), (205, 99682), (230, 88847), (253, 80770), (394, 51865), (410, 49841), (451, 45310), (506, 40385), (902, 22655), (943, 21670), (985, 20746), (1265, 16154), (1886, 10835), (1970, 10373), (2167, 9430), (2255, 9062), (2530, 8077), (4334, 4715), (4510, 4531)]