16042840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{101}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 41970960

約数和(自身を除く): 25928120

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 101, 110, 152, 190, 202, 209, 220, 361, 380, 404, 418, 440, 505, 722, 760, 808, 836, 1010, 1045, 1111, 1444, 1672, 1805, 1919, 2020, 2090, 2222, 2888, 3610, 3838, 3971, 4040, 4180, 4444, 5555, 7220, 7676, 7942, 8360, 8888, 9595, 11110, 14440, 15352, 15884, 19190, 19855, 21109, 22220, 31768, 36461, 38380, 39710, 42218, 44440, 72922, 76760, 79420, 84436, 105545, 145844, 158840, 168872, 182305, 211090, 291688, 364610, 401071, 422180, 729220, 802142, 844360, 1458440, 1604284, 2005355, 3208568, 4010710, 8021420, 16042840]

約数ペア:

[(1, 16042840), (2, 8021420), (4, 4010710), (5, 3208568), (8, 2005355), (10, 1604284), (11, 1458440), (19, 844360), (20, 802142), (22, 729220), (38, 422180), (40, 401071), (44, 364610), (55, 291688), (76, 211090), (88, 182305), (95, 168872), (101, 158840), (110, 145844), (152, 105545), (190, 84436), (202, 79420), (209, 76760), (220, 72922), (361, 44440), (380, 42218), (404, 39710), (418, 38380), (440, 36461), (505, 31768), (722, 22220), (760, 21109), (808, 19855), (836, 19190), (1010, 15884), (1045, 15352), (1111, 14440), (1444, 11110), (1672, 9595), (1805, 8888), (1919, 8360), (2020, 7942), (2090, 7676), (2222, 7220), (2888, 5555), (3610, 4444), (3838, 4180), (3971, 4040)]