15702740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 36701280

約数和(自身を除く): 20998540

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 43, 62, 76, 86, 95, 124, 155, 172, 190, 215, 310, 380, 430, 589, 620, 817, 860, 961, 1178, 1333, 1634, 1922, 2356, 2666, 2945, 3268, 3844, 4085, 4805, 5332, 5890, 6665, 8170, 9610, 11780, 13330, 16340, 18259, 19220, 25327, 26660, 36518, 41323, 50654, 73036, 82646, 91295, 101308, 126635, 165292, 182590, 206615, 253270, 365180, 413230, 506540, 785137, 826460, 1570274, 3140548, 3925685, 7851370, 15702740]

約数ペア:

[(1, 15702740), (2, 7851370), (4, 3925685), (5, 3140548), (10, 1570274), (19, 826460), (20, 785137), (31, 506540), (38, 413230), (43, 365180), (62, 253270), (76, 206615), (86, 182590), (95, 165292), (124, 126635), (155, 101308), (172, 91295), (190, 82646), (215, 73036), (310, 50654), (380, 41323), (430, 36518), (589, 26660), (620, 25327), (817, 19220), (860, 18259), (961, 16340), (1178, 13330), (1333, 11780), (1634, 9610), (1922, 8170), (2356, 6665), (2666, 5890), (2945, 5332), (3268, 4805), (3844, 4085)]