81673695

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{443}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 150856992

約数和(自身を除く): 69183297

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 241, 255, 443, 723, 765, 1205, 1329, 2169, 2215, 3615, 3987, 4097, 6645, 7531, 10845, 12291, 19935, 20485, 22593, 36873, 37655, 61455, 67779, 106763, 112965, 184365, 320289, 338895, 533815, 960867, 1601445, 1814971, 4804335, 5444913, 9074855, 16334739, 27224565, 81673695]

約数ペア:

[(1, 81673695), (3, 27224565), (5, 16334739), (9, 9074855), (15, 5444913), (17, 4804335), (45, 1814971), (51, 1601445), (85, 960867), (153, 533815), (241, 338895), (255, 320289), (443, 184365), (723, 112965), (765, 106763), (1205, 67779), (1329, 61455), (2169, 37655), (2215, 36873), (3615, 22593), (3987, 20485), (4097, 19935), (6645, 12291), (7531, 10845)]