891000320

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{7103}}^1$

素因数の和:7140

約数の個数: 120

約数和(自身を含む): 2485448064

約数和(自身を除く): 1594447744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 2560, 3136, 3584, 3920, 4480, 6272, 7103, 7840, 8960, 12544, 14206, 15680, 17920, 25088, 28412, 31360, 35515, 49721, 56824, 62720, 71030, 99442, 113648, 125440, 142060, 198884, 227296, 248605, 284120, 348047, 397768, 454592, 497210, 568240, 696094, 795536, 909184, 994420, 1136480, 1392188, 1591072, 1740235, 1818368, 1988840, 2272960, 2784376, 3182144, 3480470, 3636736, 3977680, 4545920, 5568752, 6364288, 6960940, 7955360, 9091840, 11137504, 12728576, 13921880, 15910720, 18183680, 22275008, 25457152, 27843760, 31821440, 44550016, 55687520, 63642880, 89100032, 111375040, 127285760, 178200064, 222750080, 445500160, 891000320]

約数ペア:

[(1, 891000320), (2, 445500160), (4, 222750080), (5, 178200064), (7, 127285760), (8, 111375040), (10, 89100032), (14, 63642880), (16, 55687520), (20, 44550016), (28, 31821440), (32, 27843760), (35, 25457152), (40, 22275008), (49, 18183680), (56, 15910720), (64, 13921880), (70, 12728576), (80, 11137504), (98, 9091840), (112, 7955360), (128, 6960940), (140, 6364288), (160, 5568752), (196, 4545920), (224, 3977680), (245, 3636736), (256, 3480470), (280, 3182144), (320, 2784376), (392, 2272960), (448, 1988840), (490, 1818368), (512, 1740235), (560, 1591072), (640, 1392188), (784, 1136480), (896, 994420), (980, 909184), (1120, 795536), (1280, 696094), (1568, 568240), (1792, 497210), (1960, 454592), (2240, 397768), (2560, 348047), (3136, 284120), (3584, 248605), (3920, 227296), (4480, 198884), (6272, 142060), (7103, 125440), (7840, 113648), (8960, 99442), (12544, 71030), (14206, 62720), (15680, 56824), (17920, 49721), (25088, 35515), (28412, 31360)]