20623060

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 47544840

約数和(自身を除く): 26921780

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 37, 58, 62, 74, 116, 124, 145, 148, 155, 185, 290, 310, 370, 580, 620, 740, 899, 961, 1073, 1147, 1798, 1922, 2146, 2294, 3596, 3844, 4292, 4495, 4588, 4805, 5365, 5735, 8990, 9610, 10730, 11470, 17980, 19220, 21460, 22940, 27869, 33263, 35557, 55738, 66526, 71114, 111476, 133052, 139345, 142228, 166315, 177785, 278690, 332630, 355570, 557380, 665260, 711140, 1031153, 2062306, 4124612, 5155765, 10311530, 20623060]

約数ペア:

[(1, 20623060), (2, 10311530), (4, 5155765), (5, 4124612), (10, 2062306), (20, 1031153), (29, 711140), (31, 665260), (37, 557380), (58, 355570), (62, 332630), (74, 278690), (116, 177785), (124, 166315), (145, 142228), (148, 139345), (155, 133052), (185, 111476), (290, 71114), (310, 66526), (370, 55738), (580, 35557), (620, 33263), (740, 27869), (899, 22940), (961, 21460), (1073, 19220), (1147, 17980), (1798, 11470), (1922, 10730), (2146, 9610), (2294, 8990), (3596, 5735), (3844, 5365), (4292, 4805), (4495, 4588)]