18780110

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2089}}^1$

素因数の和:2156

約数の個数: 32

約数和(自身を含む): 36115200

約数和(自身を除く): 17335090

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 2089, 4178, 4495, 8990, 10445, 20890, 60581, 64759, 121162, 129518, 302905, 323795, 605810, 647590, 1878011, 3756022, 9390055, 18780110]

約数ペア:

[(1, 18780110), (2, 9390055), (5, 3756022), (10, 1878011), (29, 647590), (31, 605810), (58, 323795), (62, 302905), (145, 129518), (155, 121162), (290, 64759), (310, 60581), (899, 20890), (1798, 10445), (2089, 8990), (4178, 4495)]