28849880

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1481}}^1$

素因数の和:1979

約数の個数: 32

約数和(自身を含む): 65089440

約数和(自身を除く): 36239560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1481, 1948, 2435, 2962, 3896, 4870, 5924, 7405, 9740, 11848, 14810, 19480, 29620, 59240, 721247, 1442494, 2884988, 3606235, 5769976, 7212470, 14424940, 28849880]

約数ペア:

[(1, 28849880), (2, 14424940), (4, 7212470), (5, 5769976), (8, 3606235), (10, 2884988), (20, 1442494), (40, 721247), (487, 59240), (974, 29620), (1481, 19480), (1948, 14810), (2435, 11848), (2962, 9740), (3896, 7405), (4870, 5924)]