71515760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28837}}^1$

素因数の和:28881

約数の個数: 40

約数和(自身を含む): 171643776

約数和(自身を除く): 100128016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 28837, 57674, 115348, 144185, 230696, 288370, 461392, 576740, 893947, 1153480, 1787894, 2306960, 3575788, 4469735, 7151576, 8939470, 14303152, 17878940, 35757880, 71515760]

約数ペア:

[(1, 71515760), (2, 35757880), (4, 17878940), (5, 14303152), (8, 8939470), (10, 7151576), (16, 4469735), (20, 3575788), (31, 2306960), (40, 1787894), (62, 1153480), (80, 893947), (124, 576740), (155, 461392), (248, 288370), (310, 230696), (496, 144185), (620, 115348), (1240, 57674), (2480, 28837)]