38759455

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 55480320

約数和(自身を除く): 16720865

約数列:

[1, 5, 7, 31, 35, 139, 155, 217, 257, 695, 973, 1085, 1285, 1799, 4309, 4865, 7967, 8995, 21545, 30163, 35723, 39835, 55769, 150815, 178615, 250061, 278845, 1107413, 1250305, 5537065, 7751891, 38759455]

約数ペア:

[(1, 38759455), (5, 7751891), (7, 5537065), (31, 1250305), (35, 1107413), (139, 278845), (155, 250061), (217, 178615), (257, 150815), (695, 55769), (973, 39835), (1085, 35723), (1285, 30163), (1799, 21545), (4309, 8995), (4865, 7967)]