55209140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12721}}^1$

素因数の和:12768

約数の個数: 48

約数和(自身を含む): 136786944

約数和(自身を除く): 81577804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 12721, 25442, 50884, 63605, 89047, 127210, 178094, 254420, 356188, 394351, 445235, 788702, 890470, 1577404, 1780940, 1971755, 2760457, 3943510, 5520914, 7887020, 11041828, 13802285, 27604570, 55209140]

約数ペア:

[(1, 55209140), (2, 27604570), (4, 13802285), (5, 11041828), (7, 7887020), (10, 5520914), (14, 3943510), (20, 2760457), (28, 1971755), (31, 1780940), (35, 1577404), (62, 890470), (70, 788702), (124, 445235), (140, 394351), (155, 356188), (217, 254420), (310, 178094), (434, 127210), (620, 89047), (868, 63605), (1085, 50884), (2170, 25442), (4340, 12721)]