81900370

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{3769}}^1$

素因数の和:3870

約数の個数: 32

約数和(自身を含む): 153906480

約数和(自身を除く): 72006110

約数列:

[1, 2, 5, 10, 41, 53, 82, 106, 205, 265, 410, 530, 2173, 3769, 4346, 7538, 10865, 18845, 21730, 37690, 154529, 199757, 309058, 399514, 772645, 998785, 1545290, 1997570, 8190037, 16380074, 40950185, 81900370]

約数ペア:

[(1, 81900370), (2, 40950185), (5, 16380074), (10, 8190037), (41, 1997570), (53, 1545290), (82, 998785), (106, 772645), (205, 399514), (265, 309058), (410, 199757), (530, 154529), (2173, 37690), (3769, 21730), (4346, 18845), (7538, 10865)]