81996876

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{727}}^1$

素因数の和:991

約数の個数: 72

約数和(自身を含む): 224448224

約数和(自身を除く): 142451348

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 241, 468, 482, 723, 727, 964, 1446, 1454, 2169, 2181, 2892, 2908, 3133, 4338, 4362, 6266, 6543, 8676, 8724, 9399, 9451, 12532, 13086, 18798, 18902, 26172, 28197, 28353, 37596, 37804, 56394, 56706, 85059, 112788, 113412, 170118, 175207, 340236, 350414, 525621, 700828, 1051242, 1576863, 2102484, 2277691, 3153726, 4555382, 6307452, 6833073, 9110764, 13666146, 20499219, 27332292, 40998438, 81996876]

約数ペア:

[(1, 81996876), (2, 40998438), (3, 27332292), (4, 20499219), (6, 13666146), (9, 9110764), (12, 6833073), (13, 6307452), (18, 4555382), (26, 3153726), (36, 2277691), (39, 2102484), (52, 1576863), (78, 1051242), (117, 700828), (156, 525621), (234, 350414), (241, 340236), (468, 175207), (482, 170118), (723, 113412), (727, 112788), (964, 85059), (1446, 56706), (1454, 56394), (2169, 37804), (2181, 37596), (2892, 28353), (2908, 28197), (3133, 26172), (4338, 18902), (4362, 18798), (6266, 13086), (6543, 12532), (8676, 9451), (8724, 9399)]