245709990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3541}}^1$

素因数の和:3814

約数の個数: 64

約数和(自身を含む): 657961920

約数和(自身を除く): 412251930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 257, 270, 514, 771, 1285, 1542, 2313, 2570, 3541, 3855, 4626, 6939, 7082, 7710, 10623, 11565, 13878, 17705, 21246, 23130, 31869, 34695, 35410, 53115, 63738, 69390, 95607, 106230, 159345, 191214, 318690, 478035, 910037, 956070, 1820074, 2730111, 4550185, 5460222, 8190333, 9100370, 13650555, 16380666, 24570999, 27301110, 40951665, 49141998, 81903330, 122854995, 245709990]

約数ペア:

[(1, 245709990), (2, 122854995), (3, 81903330), (5, 49141998), (6, 40951665), (9, 27301110), (10, 24570999), (15, 16380666), (18, 13650555), (27, 9100370), (30, 8190333), (45, 5460222), (54, 4550185), (90, 2730111), (135, 1820074), (257, 956070), (270, 910037), (514, 478035), (771, 318690), (1285, 191214), (1542, 159345), (2313, 106230), (2570, 95607), (3541, 69390), (3855, 63738), (4626, 53115), (6939, 35410), (7082, 34695), (7710, 31869), (10623, 23130), (11565, 21246), (13878, 17705)]