380890360

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{72689}}^1$

素因数の和:72831

約数の個数: 32

約数和(自身を含む): 863557200

約数和(自身を除く): 482666840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 72689, 145378, 290756, 363445, 581512, 726890, 1453780, 2907560, 9522259, 19044518, 38089036, 47611295, 76178072, 95222590, 190445180, 380890360]

約数ペア:

[(1, 380890360), (2, 190445180), (4, 95222590), (5, 76178072), (8, 47611295), (10, 38089036), (20, 19044518), (40, 9522259), (131, 2907560), (262, 1453780), (524, 726890), (655, 581512), (1048, 363445), (1310, 290756), (2620, 145378), (5240, 72689)]