20624560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1019}}^1$

素因数の和:1066

約数の個数: 80

約数和(自身を含む): 54639360

約数和(自身を除く): 34014800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 880, 920, 1012, 1019, 1265, 1840, 2024, 2038, 2530, 4048, 4076, 5060, 5095, 8152, 10120, 10190, 11209, 16304, 20240, 20380, 22418, 23437, 40760, 44836, 46874, 56045, 81520, 89672, 93748, 112090, 117185, 179344, 187496, 224180, 234370, 257807, 374992, 448360, 468740, 515614, 896720, 937480, 1031228, 1289035, 1874960, 2062456, 2578070, 4124912, 5156140, 10312280, 20624560]

約数ペア:

[(1, 20624560), (2, 10312280), (4, 5156140), (5, 4124912), (8, 2578070), (10, 2062456), (11, 1874960), (16, 1289035), (20, 1031228), (22, 937480), (23, 896720), (40, 515614), (44, 468740), (46, 448360), (55, 374992), (80, 257807), (88, 234370), (92, 224180), (110, 187496), (115, 179344), (176, 117185), (184, 112090), (220, 93748), (230, 89672), (253, 81520), (368, 56045), (440, 46874), (460, 44836), (506, 40760), (880, 23437), (920, 22418), (1012, 20380), (1019, 20240), (1265, 16304), (1840, 11209), (2024, 10190), (2038, 10120), (2530, 8152), (4048, 5095), (4076, 5060)]