25307780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{40819}}^1$

素因数の和:40859

約数の個数: 24

約数和(自身を含む): 54862080

約数和(自身を除く): 29554300

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 40819, 81638, 163276, 204095, 408190, 816380, 1265389, 2530778, 5061556, 6326945, 12653890, 25307780]

約数ペア:

[(1, 25307780), (2, 12653890), (4, 6326945), (5, 5061556), (10, 2530778), (20, 1265389), (31, 816380), (62, 408190), (124, 204095), (155, 163276), (310, 81638), (620, 40819)]