77931560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{39761}}^1$

素因数の和:39786

約数の個数: 48

約数和(自身を含む): 203979060

約数和(自身を除く): 126047500

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 39761, 79522, 159044, 198805, 278327, 318088, 397610, 556654, 795220, 1113308, 1391635, 1590440, 1948289, 2226616, 2783270, 3896578, 5566540, 7793156, 9741445, 11133080, 15586312, 19482890, 38965780, 77931560]

約数ペア:

[(1, 77931560), (2, 38965780), (4, 19482890), (5, 15586312), (7, 11133080), (8, 9741445), (10, 7793156), (14, 5566540), (20, 3896578), (28, 2783270), (35, 2226616), (40, 1948289), (49, 1590440), (56, 1391635), (70, 1113308), (98, 795220), (140, 556654), (196, 397610), (245, 318088), (280, 278327), (392, 198805), (490, 159044), (980, 79522), (1960, 39761)]