638222396

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1\times {\mathrm{1153}}^1$

素因数の和:1590

約数の個数: 48

約数和(自身を含む): 1305146304

約数和(自身を除く): 666923908

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 373, 742, 746, 1153, 1484, 1492, 2306, 2611, 4612, 5222, 8071, 10444, 16142, 19769, 32284, 39538, 61109, 79076, 122218, 138383, 244436, 276766, 427763, 430069, 553532, 855526, 860138, 1711052, 1720276, 3010483, 6020966, 12041932, 22793657, 45587314, 91174628, 159555599, 319111198, 638222396]

約数ペア:

[(1, 638222396), (2, 319111198), (4, 159555599), (7, 91174628), (14, 45587314), (28, 22793657), (53, 12041932), (106, 6020966), (212, 3010483), (371, 1720276), (373, 1711052), (742, 860138), (746, 855526), (1153, 553532), (1484, 430069), (1492, 427763), (2306, 276766), (2611, 244436), (4612, 138383), (5222, 122218), (8071, 79076), (10444, 61109), (16142, 39538), (19769, 32284)]