20067760

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1831}}^1$

素因数の和:1981

約数の個数: 40

約数和(自身を含む): 47023776

約数和(自身を除く): 26956016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 1831, 2192, 2740, 3662, 5480, 7324, 9155, 10960, 14648, 18310, 29296, 36620, 73240, 146480, 250847, 501694, 1003388, 1254235, 2006776, 2508470, 4013552, 5016940, 10033880, 20067760]

約数ペア:

[(1, 20067760), (2, 10033880), (4, 5016940), (5, 4013552), (8, 2508470), (10, 2006776), (16, 1254235), (20, 1003388), (40, 501694), (80, 250847), (137, 146480), (274, 73240), (548, 36620), (685, 29296), (1096, 18310), (1370, 14648), (1831, 10960), (2192, 9155), (2740, 7324), (3662, 5480)]