40320008

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 77112000

約数和(自身を除く): 36791992

約数列:

[1, 2, 4, 8, 101, 139, 202, 278, 359, 404, 556, 718, 808, 1112, 1436, 2872, 14039, 28078, 36259, 49901, 56156, 72518, 99802, 112312, 145036, 199604, 290072, 399208, 5040001, 10080002, 20160004, 40320008]

約数ペア:

[(1, 40320008), (2, 20160004), (4, 10080002), (8, 5040001), (101, 399208), (139, 290072), (202, 199604), (278, 145036), (359, 112312), (404, 99802), (556, 72518), (718, 56156), (808, 49901), (1112, 36259), (1436, 28078), (2872, 14039)]