208791075

素因数分解:

$3^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 353548800

約数和(自身を除く): 144757725

約数列:

[1, 3, 5, 15, 25, 75, 79, 131, 237, 269, 393, 395, 655, 807, 1185, 1345, 1965, 1975, 3275, 4035, 5925, 6725, 9825, 10349, 20175, 21251, 31047, 35239, 51745, 63753, 105717, 106255, 155235, 176195, 258725, 318765, 528585, 531275, 776175, 880975, 1593825, 2642925, 2783881, 8351643, 13919405, 41758215, 69597025, 208791075]

約数ペア:

[(1, 208791075), (3, 69597025), (5, 41758215), (15, 13919405), (25, 8351643), (75, 2783881), (79, 2642925), (131, 1593825), (237, 880975), (269, 776175), (393, 531275), (395, 528585), (655, 318765), (807, 258725), (1185, 176195), (1345, 155235), (1965, 106255), (1975, 105717), (3275, 63753), (4035, 51745), (5925, 35239), (6725, 31047), (9825, 21251), (10349, 20175)]