20865436432

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{47}}^2\times {\mathrm{20357}}^1$

素因数の和:20488

約数の個数: 60

約数和(自身を含む): 42731645580

約数和(自身を除く): 21866209148

約数列:

[1, 2, 4, 8, 16, 29, 47, 58, 94, 116, 188, 232, 376, 464, 752, 1363, 2209, 2726, 4418, 5452, 8836, 10904, 17672, 20357, 21808, 35344, 40714, 64061, 81428, 128122, 162856, 256244, 325712, 512488, 590353, 956779, 1024976, 1180706, 1913558, 2361412, 3827116, 4722824, 7654232, 9445648, 15308464, 27746591, 44968613, 55493182, 89937226, 110986364, 179874452, 221972728, 359748904, 443945456, 719497808, 1304089777, 2608179554, 5216359108, 10432718216, 20865436432]

約数ペア:

[(1, 20865436432), (2, 10432718216), (4, 5216359108), (8, 2608179554), (16, 1304089777), (29, 719497808), (47, 443945456), (58, 359748904), (94, 221972728), (116, 179874452), (188, 110986364), (232, 89937226), (376, 55493182), (464, 44968613), (752, 27746591), (1363, 15308464), (2209, 9445648), (2726, 7654232), (4418, 4722824), (5452, 3827116), (8836, 2361412), (10904, 1913558), (17672, 1180706), (20357, 1024976), (21808, 956779), (35344, 590353), (40714, 512488), (64061, 325712), (81428, 256244), (128122, 162856)]