20468030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 42550272

約数和(自身を除く): 22082242

約数列:

[1, 2, 5, 10, 11, 22, 37, 47, 55, 74, 94, 107, 110, 185, 214, 235, 370, 407, 470, 517, 535, 814, 1034, 1070, 1177, 1739, 2035, 2354, 2585, 3478, 3959, 4070, 5029, 5170, 5885, 7918, 8695, 10058, 11770, 17390, 19129, 19795, 25145, 38258, 39590, 43549, 50290, 55319, 87098, 95645, 110638, 186073, 191290, 217745, 276595, 372146, 435490, 553190, 930365, 1860730, 2046803, 4093606, 10234015, 20468030]

約数ペア:

[(1, 20468030), (2, 10234015), (5, 4093606), (10, 2046803), (11, 1860730), (22, 930365), (37, 553190), (47, 435490), (55, 372146), (74, 276595), (94, 217745), (107, 191290), (110, 186073), (185, 110638), (214, 95645), (235, 87098), (370, 55319), (407, 50290), (470, 43549), (517, 39590), (535, 38258), (814, 25145), (1034, 19795), (1070, 19129), (1177, 17390), (1739, 11770), (2035, 10058), (2354, 8695), (2585, 7918), (3478, 5885), (3959, 5170), (4070, 5029)]