311952640

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 800593920

約数和(自身を除く): 488641280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 101, 127, 128, 152, 160, 190, 202, 254, 256, 304, 320, 380, 404, 505, 508, 608, 635, 640, 760, 808, 1010, 1016, 1216, 1270, 1280, 1520, 1616, 1919, 2020, 2032, 2413, 2432, 2540, 3040, 3232, 3838, 4040, 4064, 4826, 4864, 5080, 6080, 6464, 7676, 8080, 8128, 9595, 9652, 10160, 12065, 12160, 12827, 12928, 15352, 16160, 16256, 19190, 19304, 20320, 24130, 24320, 25654, 25856, 30704, 32320, 32512, 38380, 38608, 40640, 48260, 51308, 61408, 64135, 64640, 76760, 77216, 81280, 96520, 102616, 122816, 128270, 129280, 153520, 154432, 162560, 193040, 205232, 243713, 245632, 256540, 307040, 308864, 386080, 410464, 487426, 491264, 513080, 614080, 617728, 772160, 820928, 974852, 1026160, 1218565, 1228160, 1544320, 1641856, 1949704, 2052320, 2437130, 2456320, 3088640, 3283712, 3899408, 4104640, 4874260, 7798816, 8209280, 9748520, 15597632, 16418560, 19497040, 31195264, 38994080, 62390528, 77988160, 155976320, 311952640]

約数ペア:

[(1, 311952640), (2, 155976320), (4, 77988160), (5, 62390528), (8, 38994080), (10, 31195264), (16, 19497040), (19, 16418560), (20, 15597632), (32, 9748520), (38, 8209280), (40, 7798816), (64, 4874260), (76, 4104640), (80, 3899408), (95, 3283712), (101, 3088640), (127, 2456320), (128, 2437130), (152, 2052320), (160, 1949704), (190, 1641856), (202, 1544320), (254, 1228160), (256, 1218565), (304, 1026160), (320, 974852), (380, 820928), (404, 772160), (505, 617728), (508, 614080), (608, 513080), (635, 491264), (640, 487426), (760, 410464), (808, 386080), (1010, 308864), (1016, 307040), (1216, 256540), (1270, 245632), (1280, 243713), (1520, 205232), (1616, 193040), (1919, 162560), (2020, 154432), (2032, 153520), (2413, 129280), (2432, 128270), (2540, 122816), (3040, 102616), (3232, 96520), (3838, 81280), (4040, 77216), (4064, 76760), (4826, 64640), (4864, 64135), (5080, 61408), (6080, 51308), (6464, 48260), (7676, 40640), (8080, 38608), (8128, 38380), (9595, 32512), (9652, 32320), (10160, 30704), (12065, 25856), (12160, 25654), (12827, 24320), (12928, 24130), (15352, 20320), (16160, 19304), (16256, 19190)]