209122880

素因数分解:

$2^6\times 5^1\times {\mathrm{599}}^1\times {\mathrm{1091}}^1$

素因数の和:1707

約数の個数: 56

約数和(自身を含む): 499262400

約数和(自身を除く): 290139520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 599, 1091, 1198, 2182, 2396, 2995, 4364, 4792, 5455, 5990, 8728, 9584, 10910, 11980, 17456, 19168, 21820, 23960, 34912, 38336, 43640, 47920, 69824, 87280, 95840, 174560, 191680, 349120, 653509, 1307018, 2614036, 3267545, 5228072, 6535090, 10456144, 13070180, 20912288, 26140360, 41824576, 52280720, 104561440, 209122880]

約数ペア:

[(1, 209122880), (2, 104561440), (4, 52280720), (5, 41824576), (8, 26140360), (10, 20912288), (16, 13070180), (20, 10456144), (32, 6535090), (40, 5228072), (64, 3267545), (80, 2614036), (160, 1307018), (320, 653509), (599, 349120), (1091, 191680), (1198, 174560), (2182, 95840), (2396, 87280), (2995, 69824), (4364, 47920), (4792, 43640), (5455, 38336), (5990, 34912), (8728, 23960), (9584, 21820), (10910, 19168), (11980, 17456)]