28251705

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4817}}^1$

素因数の和:4865

約数の個数: 32

約数和(自身を含む): 49953024

約数和(自身を除く): 21701319

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 4817, 5865, 14451, 24085, 72255, 81889, 110791, 245667, 332373, 409445, 553955, 1228335, 1661865, 1883447, 5650341, 9417235, 28251705]

約数ペア:

[(1, 28251705), (3, 9417235), (5, 5650341), (15, 1883447), (17, 1661865), (23, 1228335), (51, 553955), (69, 409445), (85, 332373), (115, 245667), (255, 110791), (345, 81889), (391, 72255), (1173, 24085), (1955, 14451), (4817, 5865)]