20084900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:106

約数の個数: 108

約数和(自身を含む): 51715440

約数和(自身を除く): 31630540

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 31, 38, 44, 50, 55, 62, 76, 95, 100, 110, 124, 155, 190, 209, 220, 275, 310, 341, 380, 418, 475, 550, 589, 620, 682, 775, 836, 950, 961, 1045, 1100, 1178, 1364, 1550, 1705, 1900, 1922, 2090, 2356, 2945, 3100, 3410, 3844, 4180, 4805, 5225, 5890, 6479, 6820, 8525, 9610, 10450, 10571, 11780, 12958, 14725, 17050, 18259, 19220, 20900, 21142, 24025, 25916, 29450, 32395, 34100, 36518, 42284, 48050, 52855, 58900, 64790, 73036, 91295, 96100, 105710, 129580, 161975, 182590, 200849, 211420, 264275, 323950, 365180, 401698, 456475, 528550, 647900, 803396, 912950, 1004245, 1057100, 1825900, 2008490, 4016980, 5021225, 10042450, 20084900]

約数ペア:

[(1, 20084900), (2, 10042450), (4, 5021225), (5, 4016980), (10, 2008490), (11, 1825900), (19, 1057100), (20, 1004245), (22, 912950), (25, 803396), (31, 647900), (38, 528550), (44, 456475), (50, 401698), (55, 365180), (62, 323950), (76, 264275), (95, 211420), (100, 200849), (110, 182590), (124, 161975), (155, 129580), (190, 105710), (209, 96100), (220, 91295), (275, 73036), (310, 64790), (341, 58900), (380, 52855), (418, 48050), (475, 42284), (550, 36518), (589, 34100), (620, 32395), (682, 29450), (775, 25916), (836, 24025), (950, 21142), (961, 20900), (1045, 19220), (1100, 18259), (1178, 17050), (1364, 14725), (1550, 12958), (1705, 11780), (1900, 10571), (1922, 10450), (2090, 9610), (2356, 8525), (2945, 6820), (3100, 6479), (3410, 5890), (3844, 5225), (4180, 4805)]