13071025

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:210

約数の個数: 36

約数和(自身を含む): 18553500

約数和(自身を除く): 5482475

約数列:

[1, 5, 11, 25, 29, 55, 121, 145, 149, 275, 319, 605, 725, 745, 1595, 1639, 3025, 3509, 3725, 4321, 7975, 8195, 17545, 18029, 21605, 40975, 47531, 87725, 90145, 108025, 237655, 450725, 522841, 1188275, 2614205, 13071025]

約数ペア:

[(1, 13071025), (5, 2614205), (11, 1188275), (25, 522841), (29, 450725), (55, 237655), (121, 108025), (145, 90145), (149, 87725), (275, 47531), (319, 40975), (605, 21605), (725, 18029), (745, 17545), (1595, 8195), (1639, 7975), (3025, 4321), (3509, 3725)]