81020258

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^3\times {\mathrm{151}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 138222720

約数和(自身を除く): 57202462

約数列:

[1, 2, 11, 22, 29, 58, 151, 302, 319, 638, 841, 1661, 1682, 3322, 4379, 8758, 9251, 18502, 24389, 48169, 48778, 96338, 126991, 253982, 268279, 536558, 1396901, 2793802, 3682739, 7365478, 40510129, 81020258]

約数ペア:

[(1, 81020258), (2, 40510129), (11, 7365478), (22, 3682739), (29, 2793802), (58, 1396901), (151, 536558), (302, 268279), (319, 253982), (638, 126991), (841, 96338), (1661, 48778), (1682, 48169), (3322, 24389), (4379, 18502), (8758, 9251)]