161857960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1019}}^1$

素因数の和:1079

約数の個数: 96

約数和(自身を含む): 419709600

約数和(自身を除く): 257851640

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 361, 380, 418, 440, 722, 760, 836, 1019, 1045, 1444, 1672, 1805, 2038, 2090, 2888, 3610, 3971, 4076, 4180, 5095, 7220, 7942, 8152, 8360, 10190, 11209, 14440, 15884, 19361, 19855, 20380, 22418, 31768, 38722, 39710, 40760, 44836, 56045, 77444, 79420, 89672, 96805, 112090, 154888, 158840, 193610, 212971, 224180, 367859, 387220, 425942, 448360, 735718, 774440, 851884, 1064855, 1471436, 1703768, 1839295, 2129710, 2942872, 3678590, 4046449, 4259420, 7357180, 8092898, 8518840, 14714360, 16185796, 20232245, 32371592, 40464490, 80928980, 161857960]

約数ペア:

[(1, 161857960), (2, 80928980), (4, 40464490), (5, 32371592), (8, 20232245), (10, 16185796), (11, 14714360), (19, 8518840), (20, 8092898), (22, 7357180), (38, 4259420), (40, 4046449), (44, 3678590), (55, 2942872), (76, 2129710), (88, 1839295), (95, 1703768), (110, 1471436), (152, 1064855), (190, 851884), (209, 774440), (220, 735718), (361, 448360), (380, 425942), (418, 387220), (440, 367859), (722, 224180), (760, 212971), (836, 193610), (1019, 158840), (1045, 154888), (1444, 112090), (1672, 96805), (1805, 89672), (2038, 79420), (2090, 77444), (2888, 56045), (3610, 44836), (3971, 40760), (4076, 39710), (4180, 38722), (5095, 31768), (7220, 22418), (7942, 20380), (8152, 19855), (8360, 19361), (10190, 15884), (11209, 14440)]