3999728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:309

約数の個数: 40

約数和(自身を含む): 8332800

約数和(自身を除く): 4333072

約数列:

[1, 2, 4, 8, 16, 19, 38, 59, 76, 118, 152, 223, 236, 304, 446, 472, 892, 944, 1121, 1784, 2242, 3568, 4237, 4484, 8474, 8968, 13157, 16948, 17936, 26314, 33896, 52628, 67792, 105256, 210512, 249983, 499966, 999932, 1999864, 3999728]

約数ペア:

[(1, 3999728), (2, 1999864), (4, 999932), (8, 499966), (16, 249983), (19, 210512), (38, 105256), (59, 67792), (76, 52628), (118, 33896), (152, 26314), (223, 17936), (236, 16948), (304, 13157), (446, 8968), (472, 8474), (892, 4484), (944, 4237), (1121, 3568), (1784, 2242)]