20053550

素因数分解:

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

素因数の和:162

約数の個数: 72

約数和(自身を含む): 43369992

約数和(自身を除く): 23316442

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 101, 110, 190, 202, 209, 275, 361, 418, 475, 505, 550, 722, 950, 1010, 1045, 1111, 1805, 1919, 2090, 2222, 2525, 3610, 3838, 3971, 5050, 5225, 5555, 7942, 9025, 9595, 10450, 11110, 18050, 19190, 19855, 21109, 27775, 36461, 39710, 42218, 47975, 55550, 72922, 95950, 99275, 105545, 182305, 198550, 211090, 364610, 401071, 527725, 802142, 911525, 1055450, 1823050, 2005355, 4010710, 10026775, 20053550]

約数ペア:

[(1, 20053550), (2, 10026775), (5, 4010710), (10, 2005355), (11, 1823050), (19, 1055450), (22, 911525), (25, 802142), (38, 527725), (50, 401071), (55, 364610), (95, 211090), (101, 198550), (110, 182305), (190, 105545), (202, 99275), (209, 95950), (275, 72922), (361, 55550), (418, 47975), (475, 42218), (505, 39710), (550, 36461), (722, 27775), (950, 21109), (1010, 19855), (1045, 19190), (1111, 18050), (1805, 11110), (1919, 10450), (2090, 9595), (2222, 9025), (2525, 7942), (3610, 5555), (3838, 5225), (3971, 5050)]