19315850

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:299

約数の個数: 48

約数和(自身を含む): 37785528

約数和(自身を除く): 18469678

約数列:

[1, 2, 5, 10, 25, 37, 50, 53, 74, 106, 185, 197, 265, 370, 394, 530, 925, 985, 1325, 1850, 1961, 1970, 2650, 3922, 4925, 7289, 9805, 9850, 10441, 14578, 19610, 20882, 36445, 49025, 52205, 72890, 98050, 104410, 182225, 261025, 364450, 386317, 522050, 772634, 1931585, 3863170, 9657925, 19315850]

約数ペア:

[(1, 19315850), (2, 9657925), (5, 3863170), (10, 1931585), (25, 772634), (37, 522050), (50, 386317), (53, 364450), (74, 261025), (106, 182225), (185, 104410), (197, 98050), (265, 72890), (370, 52205), (394, 49025), (530, 36445), (925, 20882), (985, 19610), (1325, 14578), (1850, 10441), (1961, 9850), (1970, 9805), (2650, 7289), (3922, 4925)]