208821025

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1789}}^1$

素因数の和:1858

約数の個数: 48

約数和(自身を含む): 319622400

約数和(自身を除く): 110801375

約数列:

[1, 5, 7, 23, 25, 29, 35, 115, 145, 161, 175, 203, 575, 667, 725, 805, 1015, 1789, 3335, 4025, 4669, 5075, 8945, 12523, 16675, 23345, 41147, 44725, 51881, 62615, 116725, 205735, 259405, 288029, 313075, 363167, 1028675, 1193263, 1297025, 1440145, 1815835, 5966315, 7200725, 8352841, 9079175, 29831575, 41764205, 208821025]

約数ペア:

[(1, 208821025), (5, 41764205), (7, 29831575), (23, 9079175), (25, 8352841), (29, 7200725), (35, 5966315), (115, 1815835), (145, 1440145), (161, 1297025), (175, 1193263), (203, 1028675), (575, 363167), (667, 313075), (725, 288029), (805, 259405), (1015, 205735), (1789, 116725), (3335, 62615), (4025, 51881), (4669, 44725), (5075, 41147), (8945, 23345), (12523, 16675)]