77823760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19853}}^1$

素因数の和:19880

約数の個数: 60

約数和(自身を含む): 210492108

約数和(自身を除く): 132668348

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 19853, 39706, 79412, 99265, 138971, 158824, 198530, 277942, 317648, 397060, 555884, 694855, 794120, 972797, 1111768, 1389710, 1588240, 1945594, 2223536, 2779420, 3891188, 4863985, 5558840, 7782376, 9727970, 11117680, 15564752, 19455940, 38911880, 77823760]

約数ペア:

[(1, 77823760), (2, 38911880), (4, 19455940), (5, 15564752), (7, 11117680), (8, 9727970), (10, 7782376), (14, 5558840), (16, 4863985), (20, 3891188), (28, 2779420), (35, 2223536), (40, 1945594), (49, 1588240), (56, 1389710), (70, 1111768), (80, 972797), (98, 794120), (112, 694855), (140, 555884), (196, 397060), (245, 317648), (280, 277942), (392, 198530), (490, 158824), (560, 138971), (784, 99265), (980, 79412), (1960, 39706), (3920, 19853)]