243391304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{7477}}^1$

素因数の和:7809

約数の個数: 32

約数和(自身を含む): 493099320

約数和(自身を除く): 249708016

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 313, 626, 1252, 2504, 4069, 7477, 8138, 14954, 16276, 29908, 32552, 59816, 97201, 194402, 388804, 777608, 2340301, 4680602, 9361204, 18722408, 30423913, 60847826, 121695652, 243391304]

約数ペア:

[(1, 243391304), (2, 121695652), (4, 60847826), (8, 30423913), (13, 18722408), (26, 9361204), (52, 4680602), (104, 2340301), (313, 777608), (626, 388804), (1252, 194402), (2504, 97201), (4069, 59816), (7477, 32552), (8138, 29908), (14954, 16276)]