281036775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{220421}}^1$

素因数の和:220451

約数の個数: 24

約数和(自身を含む): 491981904

約数和(自身を除く): 210945129

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 220421, 661263, 1102105, 3306315, 3747157, 5510525, 11241471, 16531575, 18735785, 56207355, 93678925, 281036775]

約数ペア:

[(1, 281036775), (3, 93678925), (5, 56207355), (15, 18735785), (17, 16531575), (25, 11241471), (51, 5510525), (75, 3747157), (85, 3306315), (255, 1102105), (425, 661263), (1275, 220421)]