28131004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 55996416

約数和(自身を除く): 27865412

約数列:

[1, 2, 4, 11, 22, 44, 47, 61, 94, 122, 188, 223, 244, 446, 517, 671, 892, 1034, 1342, 2068, 2453, 2684, 2867, 4906, 5734, 9812, 10481, 11468, 13603, 20962, 27206, 31537, 41924, 54412, 63074, 115291, 126148, 149633, 230582, 299266, 461164, 598532, 639341, 1278682, 2557364, 7032751, 14065502, 28131004]

約数ペア:

[(1, 28131004), (2, 14065502), (4, 7032751), (11, 2557364), (22, 1278682), (44, 639341), (47, 598532), (61, 461164), (94, 299266), (122, 230582), (188, 149633), (223, 126148), (244, 115291), (446, 63074), (517, 54412), (671, 41924), (892, 31537), (1034, 27206), (1342, 20962), (2068, 13603), (2453, 11468), (2684, 10481), (2867, 9812), (4906, 5734)]