163291880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131687}}^1$

素因数の和:131729

約数の個数: 32

約数和(自身を含む): 379261440

約数和(自身を除く): 215969560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 131687, 263374, 526748, 658435, 1053496, 1316870, 2633740, 4082297, 5267480, 8164594, 16329188, 20411485, 32658376, 40822970, 81645940, 163291880]

約数ペア:

[(1, 163291880), (2, 81645940), (4, 40822970), (5, 32658376), (8, 20411485), (10, 16329188), (20, 8164594), (31, 5267480), (40, 4082297), (62, 2633740), (124, 1316870), (155, 1053496), (248, 658435), (310, 526748), (620, 263374), (1240, 131687)]