16550840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 39152160

約数和(自身を除く): 22601320

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 53, 74, 106, 148, 185, 211, 212, 265, 296, 370, 422, 424, 530, 740, 844, 1055, 1060, 1480, 1688, 1961, 2110, 2120, 3922, 4220, 7807, 7844, 8440, 9805, 11183, 15614, 15688, 19610, 22366, 31228, 39035, 39220, 44732, 55915, 62456, 78070, 78440, 89464, 111830, 156140, 223660, 312280, 413771, 447320, 827542, 1655084, 2068855, 3310168, 4137710, 8275420, 16550840]

約数ペア:

[(1, 16550840), (2, 8275420), (4, 4137710), (5, 3310168), (8, 2068855), (10, 1655084), (20, 827542), (37, 447320), (40, 413771), (53, 312280), (74, 223660), (106, 156140), (148, 111830), (185, 89464), (211, 78440), (212, 78070), (265, 62456), (296, 55915), (370, 44732), (422, 39220), (424, 39035), (530, 31228), (740, 22366), (844, 19610), (1055, 15688), (1060, 15614), (1480, 11183), (1688, 9805), (1961, 8440), (2110, 7844), (2120, 7807), (3922, 4220)]