280307997

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 432432000

約数和(自身を除く): 152124003

約数列:

[1, 3, 9, 29, 59, 87, 109, 167, 177, 261, 327, 501, 531, 981, 1503, 1711, 3161, 4843, 5133, 6431, 9483, 9853, 14529, 15399, 18203, 19293, 28449, 29559, 43587, 54609, 57879, 88677, 163827, 186499, 285737, 527887, 559497, 857211, 1073977, 1583661, 1678491, 2571633, 3221931, 4750983, 9665793, 31145333, 93435999, 280307997]

約数ペア:

[(1, 280307997), (3, 93435999), (9, 31145333), (29, 9665793), (59, 4750983), (87, 3221931), (109, 2571633), (167, 1678491), (177, 1583661), (261, 1073977), (327, 857211), (501, 559497), (531, 527887), (981, 285737), (1503, 186499), (1711, 163827), (3161, 88677), (4843, 57879), (5133, 54609), (6431, 43587), (9483, 29559), (9853, 28449), (14529, 19293), (15399, 18203)]