77181860

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11251}}^1$

素因数の和:11281

約数の個数: 48

約数和(自身を含む): 189033600

約数和(自身を除く): 111851740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 11251, 22502, 45004, 56255, 78757, 112510, 157514, 225020, 315028, 393785, 551299, 787570, 1102598, 1575140, 2205196, 2756495, 3859093, 5512990, 7718186, 11025980, 15436372, 19295465, 38590930, 77181860]

約数ペア:

[(1, 77181860), (2, 38590930), (4, 19295465), (5, 15436372), (7, 11025980), (10, 7718186), (14, 5512990), (20, 3859093), (28, 2756495), (35, 2205196), (49, 1575140), (70, 1102598), (98, 787570), (140, 551299), (196, 393785), (245, 315028), (343, 225020), (490, 157514), (686, 112510), (980, 78757), (1372, 56255), (1715, 45004), (3430, 22502), (6860, 11251)]