78747460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{1361}}^1$

素因数の和:1644

約数の個数: 48

約数和(自身を含む): 181222272

約数和(自身を除く): 102474812

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 263, 526, 1052, 1315, 1361, 2630, 2722, 2893, 5260, 5444, 5786, 6805, 11572, 13610, 14465, 14971, 27220, 28930, 29942, 57860, 59884, 74855, 149710, 299420, 357943, 715886, 1431772, 1789715, 3579430, 3937373, 7158860, 7874746, 15749492, 19686865, 39373730, 78747460]

約数ペア:

[(1, 78747460), (2, 39373730), (4, 19686865), (5, 15749492), (10, 7874746), (11, 7158860), (20, 3937373), (22, 3579430), (44, 1789715), (55, 1431772), (110, 715886), (220, 357943), (263, 299420), (526, 149710), (1052, 74855), (1315, 59884), (1361, 57860), (2630, 29942), (2722, 28930), (2893, 27220), (5260, 14971), (5444, 14465), (5786, 13610), (6805, 11572)]