389968215

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{40813}}^1$

素因数の和:40848

約数の個数: 48

約数和(自身を含む): 781669728

約数和(自身を除く): 391701513

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 3185, 9555, 40813, 122439, 204065, 285691, 530569, 612195, 857073, 1428455, 1591707, 1999837, 2652845, 3713983, 4285365, 5999511, 7958535, 9999185, 11141949, 18569915, 25997881, 29997555, 55709745, 77993643, 129989405, 389968215]

約数ペア:

[(1, 389968215), (3, 129989405), (5, 77993643), (7, 55709745), (13, 29997555), (15, 25997881), (21, 18569915), (35, 11141949), (39, 9999185), (49, 7958535), (65, 5999511), (91, 4285365), (105, 3713983), (147, 2652845), (195, 1999837), (245, 1591707), (273, 1428455), (455, 857073), (637, 612195), (735, 530569), (1365, 285691), (1911, 204065), (3185, 122439), (9555, 40813)]