19657550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{347}}^1$

素因数の和:473

約数の個数: 48

約数和(自身を含む): 40390272

約数和(自身を除く): 20732722

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 103, 110, 206, 275, 347, 515, 550, 694, 1030, 1133, 1735, 2266, 2575, 3470, 3817, 5150, 5665, 7634, 8675, 11330, 17350, 19085, 28325, 35741, 38170, 56650, 71482, 95425, 178705, 190850, 357410, 393151, 786302, 893525, 1787050, 1965755, 3931510, 9828775, 19657550]

約数ペア:

[(1, 19657550), (2, 9828775), (5, 3931510), (10, 1965755), (11, 1787050), (22, 893525), (25, 786302), (50, 393151), (55, 357410), (103, 190850), (110, 178705), (206, 95425), (275, 71482), (347, 56650), (515, 38170), (550, 35741), (694, 28325), (1030, 19085), (1133, 17350), (1735, 11330), (2266, 8675), (2575, 7634), (3470, 5665), (3817, 5150)]