31977820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{9931}}^1$

素因数の和:9970

約数の個数: 48

約数和(自身を含む): 80091648

約数和(自身を除く): 48113828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 9931, 19862, 39724, 49655, 69517, 99310, 139034, 198620, 228413, 278068, 347585, 456826, 695170, 913652, 1142065, 1390340, 1598891, 2284130, 3197782, 4568260, 6395564, 7994455, 15988910, 31977820]

約数ペア:

[(1, 31977820), (2, 15988910), (4, 7994455), (5, 6395564), (7, 4568260), (10, 3197782), (14, 2284130), (20, 1598891), (23, 1390340), (28, 1142065), (35, 913652), (46, 695170), (70, 456826), (92, 347585), (115, 278068), (140, 228413), (161, 198620), (230, 139034), (322, 99310), (460, 69517), (644, 49655), (805, 39724), (1610, 19862), (3220, 9931)]