77938360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{401}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 181478880

約数和(自身を除く): 103540520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 113, 172, 215, 226, 344, 401, 430, 452, 565, 802, 860, 904, 1130, 1604, 1720, 2005, 2260, 3208, 4010, 4520, 4859, 8020, 9718, 16040, 17243, 19436, 24295, 34486, 38872, 45313, 48590, 68972, 86215, 90626, 97180, 137944, 172430, 181252, 194360, 226565, 344860, 362504, 453130, 689720, 906260, 1812520, 1948459, 3896918, 7793836, 9742295, 15587672, 19484590, 38969180, 77938360]

約数ペア:

[(1, 77938360), (2, 38969180), (4, 19484590), (5, 15587672), (8, 9742295), (10, 7793836), (20, 3896918), (40, 1948459), (43, 1812520), (86, 906260), (113, 689720), (172, 453130), (215, 362504), (226, 344860), (344, 226565), (401, 194360), (430, 181252), (452, 172430), (565, 137944), (802, 97180), (860, 90626), (904, 86215), (1130, 68972), (1604, 48590), (1720, 45313), (2005, 38872), (2260, 34486), (3208, 24295), (4010, 19436), (4520, 17243), (4859, 16040), (8020, 9718)]