204517420

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{241}}^1\times {\mathrm{281}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 435669696

約数和(自身を除く): 231152276

約数列:

[1, 2, 4, 5, 10, 20, 151, 241, 281, 302, 482, 562, 604, 755, 964, 1124, 1205, 1405, 1510, 2410, 2810, 3020, 4820, 5620, 36391, 42431, 67721, 72782, 84862, 135442, 145564, 169724, 181955, 212155, 270884, 338605, 363910, 424310, 677210, 727820, 848620, 1354420, 10225871, 20451742, 40903484, 51129355, 102258710, 204517420]

約数ペア:

[(1, 204517420), (2, 102258710), (4, 51129355), (5, 40903484), (10, 20451742), (20, 10225871), (151, 1354420), (241, 848620), (281, 727820), (302, 677210), (482, 424310), (562, 363910), (604, 338605), (755, 270884), (964, 212155), (1124, 181955), (1205, 169724), (1405, 145564), (1510, 135442), (2410, 84862), (2810, 72782), (3020, 67721), (4820, 42431), (5620, 36391)]