81020628

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:255

約数の個数: 144

約数和(自身を含む): 238573440

約数和(自身を除く): 157552812

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 27, 36, 39, 46, 52, 54, 69, 78, 92, 108, 117, 138, 156, 169, 193, 207, 234, 276, 299, 338, 351, 386, 414, 468, 507, 579, 598, 621, 676, 702, 772, 828, 897, 1014, 1158, 1196, 1242, 1404, 1521, 1737, 1794, 2028, 2316, 2484, 2509, 2691, 3042, 3474, 3588, 3887, 4439, 4563, 5018, 5211, 5382, 6084, 6948, 7527, 7774, 8073, 8878, 9126, 10036, 10422, 10764, 11661, 13317, 15054, 15548, 16146, 17756, 18252, 20844, 22581, 23322, 26634, 30108, 32292, 32617, 34983, 39951, 45162, 46644, 53268, 57707, 65234, 67743, 69966, 79902, 90324, 97851, 104949, 115414, 119853, 130468, 135486, 139932, 159804, 173121, 195702, 209898, 230828, 239706, 270972, 293553, 346242, 391404, 419796, 479412, 519363, 587106, 692484, 750191, 880659, 1038726, 1174212, 1500382, 1558089, 1761318, 2077452, 2250573, 3000764, 3116178, 3522636, 4501146, 6232356, 6751719, 9002292, 13503438, 20255157, 27006876, 40510314, 81020628]

約数ペア:

[(1, 81020628), (2, 40510314), (3, 27006876), (4, 20255157), (6, 13503438), (9, 9002292), (12, 6751719), (13, 6232356), (18, 4501146), (23, 3522636), (26, 3116178), (27, 3000764), (36, 2250573), (39, 2077452), (46, 1761318), (52, 1558089), (54, 1500382), (69, 1174212), (78, 1038726), (92, 880659), (108, 750191), (117, 692484), (138, 587106), (156, 519363), (169, 479412), (193, 419796), (207, 391404), (234, 346242), (276, 293553), (299, 270972), (338, 239706), (351, 230828), (386, 209898), (414, 195702), (468, 173121), (507, 159804), (579, 139932), (598, 135486), (621, 130468), (676, 119853), (702, 115414), (772, 104949), (828, 97851), (897, 90324), (1014, 79902), (1158, 69966), (1196, 67743), (1242, 65234), (1404, 57707), (1521, 53268), (1737, 46644), (1794, 45162), (2028, 39951), (2316, 34983), (2484, 32617), (2509, 32292), (2691, 30108), (3042, 26634), (3474, 23322), (3588, 22581), (3887, 20844), (4439, 18252), (4563, 17756), (5018, 16146), (5211, 15548), (5382, 15054), (6084, 13317), (6948, 11661), (7527, 10764), (7774, 10422), (8073, 10036), (8878, 9126)]