638518734

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{379}}^1\times {\mathrm{4457}}^1$

素因数の和:4854

約数の個数: 64

約数和(自身を含む): 1626278400

約数和(自身を除く): 987759666

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 379, 758, 1137, 2274, 2653, 3411, 4457, 5306, 6822, 7959, 8914, 10233, 13371, 15918, 20466, 23877, 26742, 31199, 40113, 47754, 62398, 71631, 80226, 93597, 120339, 143262, 187194, 240678, 280791, 561582, 842373, 1684746, 1689203, 3378406, 5067609, 10135218, 11824421, 15202827, 23648842, 30405654, 35473263, 45608481, 70946526, 91216962, 106419789, 212839578, 319259367, 638518734]

約数ペア:

[(1, 638518734), (2, 319259367), (3, 212839578), (6, 106419789), (7, 91216962), (9, 70946526), (14, 45608481), (18, 35473263), (21, 30405654), (27, 23648842), (42, 15202827), (54, 11824421), (63, 10135218), (126, 5067609), (189, 3378406), (378, 1689203), (379, 1684746), (758, 842373), (1137, 561582), (2274, 280791), (2653, 240678), (3411, 187194), (4457, 143262), (5306, 120339), (6822, 93597), (7959, 80226), (8914, 71631), (10233, 62398), (13371, 47754), (15918, 40113), (20466, 31199), (23877, 26742)]