20216608

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{811}}^1$

素因数の和:881

約数の個数: 48

約数和(自身を含む): 42971040

約数和(自身を除く): 22754432

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 76, 82, 152, 164, 304, 328, 608, 656, 779, 811, 1312, 1558, 1622, 3116, 3244, 6232, 6488, 12464, 12976, 15409, 24928, 25952, 30818, 33251, 61636, 66502, 123272, 133004, 246544, 266008, 493088, 532016, 631769, 1064032, 1263538, 2527076, 5054152, 10108304, 20216608]

約数ペア:

[(1, 20216608), (2, 10108304), (4, 5054152), (8, 2527076), (16, 1263538), (19, 1064032), (32, 631769), (38, 532016), (41, 493088), (76, 266008), (82, 246544), (152, 133004), (164, 123272), (304, 66502), (328, 61636), (608, 33251), (656, 30818), (779, 25952), (811, 24928), (1312, 15409), (1558, 12976), (1622, 12464), (3116, 6488), (3244, 6232)]