28505015

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1511}}^1$

素因数の和:1548

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 15040585

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 343, 385, 539, 1511, 1715, 2695, 3773, 7555, 10577, 16621, 18865, 52885, 74039, 83105, 116347, 370195, 518273, 581735, 814429, 2591365, 4072145, 5701003, 28505015]

約数ペア:

[(1, 28505015), (5, 5701003), (7, 4072145), (11, 2591365), (35, 814429), (49, 581735), (55, 518273), (77, 370195), (245, 116347), (343, 83105), (385, 74039), (539, 52885), (1511, 18865), (1715, 16621), (2695, 10577), (3773, 7555)]