19940168

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1409}}^1$

素因数の和:1505

約数の個数: 32

約数和(自身を含む): 39339000

約数和(自身を除く): 19398832

約数列:

[1, 2, 4, 8, 29, 58, 61, 116, 122, 232, 244, 488, 1409, 1769, 2818, 3538, 5636, 7076, 11272, 14152, 40861, 81722, 85949, 163444, 171898, 326888, 343796, 687592, 2492521, 4985042, 9970084, 19940168]

約数ペア:

[(1, 19940168), (2, 9970084), (4, 4985042), (8, 2492521), (29, 687592), (58, 343796), (61, 326888), (116, 171898), (122, 163444), (232, 85949), (244, 81722), (488, 40861), (1409, 14152), (1769, 11272), (2818, 7076), (3538, 5636)]