81366340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{2269}}^1$

素因数の和:2452

約数の個数: 48

約数和(自身を含む): 187629120

約数和(自身を除く): 106262780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 163, 220, 326, 652, 815, 1630, 1793, 2269, 3260, 3586, 4538, 7172, 8965, 9076, 11345, 17930, 22690, 24959, 35860, 45380, 49918, 99836, 124795, 249590, 369847, 499180, 739694, 1479388, 1849235, 3698470, 4068317, 7396940, 8136634, 16273268, 20341585, 40683170, 81366340]

約数ペア:

[(1, 81366340), (2, 40683170), (4, 20341585), (5, 16273268), (10, 8136634), (11, 7396940), (20, 4068317), (22, 3698470), (44, 1849235), (55, 1479388), (110, 739694), (163, 499180), (220, 369847), (326, 249590), (652, 124795), (815, 99836), (1630, 49918), (1793, 45380), (2269, 35860), (3260, 24959), (3586, 22690), (4538, 17930), (7172, 11345), (8965, 9076)]