2009773925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2591}}^1$

素因数の和:2714

約数の個数: 48

約数和(自身を含む): 2776965120

約数和(自身を除く): 767191195

約数列:

[1, 5, 19, 23, 25, 71, 95, 115, 355, 437, 475, 575, 1349, 1633, 1775, 2185, 2591, 6745, 8165, 10925, 12955, 31027, 33725, 40825, 49229, 59593, 64775, 155135, 183961, 246145, 297965, 775675, 919805, 1132267, 1230725, 1489825, 3495259, 4231103, 4599025, 5661335, 17476295, 21155515, 28306675, 80390957, 87381475, 105777575, 401954785, 2009773925]

約数ペア:

[(1, 2009773925), (5, 401954785), (19, 105777575), (23, 87381475), (25, 80390957), (71, 28306675), (95, 21155515), (115, 17476295), (355, 5661335), (437, 4599025), (475, 4231103), (575, 3495259), (1349, 1489825), (1633, 1230725), (1775, 1132267), (2185, 919805), (2591, 775675), (6745, 297965), (8165, 246145), (10925, 183961), (12955, 155135), (31027, 64775), (33725, 59593), (40825, 49229)]