28781390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:377

約数の個数: 64

約数和(自身を含む): 60963840

約数和(自身を除く): 32182450

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 47, 55, 94, 95, 110, 190, 209, 235, 293, 418, 470, 517, 586, 893, 1034, 1045, 1465, 1786, 2090, 2585, 2930, 3223, 4465, 5170, 5567, 6446, 8930, 9823, 11134, 13771, 16115, 19646, 27542, 27835, 32230, 49115, 55670, 61237, 68855, 98230, 122474, 137710, 151481, 261649, 302962, 306185, 523298, 612370, 757405, 1308245, 1514810, 2616490, 2878139, 5756278, 14390695, 28781390]

約数ペア:

[(1, 28781390), (2, 14390695), (5, 5756278), (10, 2878139), (11, 2616490), (19, 1514810), (22, 1308245), (38, 757405), (47, 612370), (55, 523298), (94, 306185), (95, 302962), (110, 261649), (190, 151481), (209, 137710), (235, 122474), (293, 98230), (418, 68855), (470, 61237), (517, 55670), (586, 49115), (893, 32230), (1034, 27835), (1045, 27542), (1465, 19646), (1786, 16115), (2090, 13771), (2585, 11134), (2930, 9823), (3223, 8930), (4465, 6446), (5170, 5567)]