64547480

素因数分解:

$2^3\times 5^1\times {\mathrm{1097}}^1\times {\mathrm{1471}}^1$

素因数の和:2579

約数の個数: 32

約数和(自身を含む): 145463040

約数和(自身を除く): 80915560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1097, 1471, 2194, 2942, 4388, 5485, 5884, 7355, 8776, 10970, 11768, 14710, 21940, 29420, 43880, 58840, 1613687, 3227374, 6454748, 8068435, 12909496, 16136870, 32273740, 64547480]

約数ペア:

[(1, 64547480), (2, 32273740), (4, 16136870), (5, 12909496), (8, 8068435), (10, 6454748), (20, 3227374), (40, 1613687), (1097, 58840), (1471, 43880), (2194, 29420), (2942, 21940), (4388, 14710), (5485, 11768), (5884, 10970), (7355, 8776)]