87940480

素因数分解:

$2^7\times 5^1\times {\mathrm{313}}^1\times {\mathrm{439}}^1$

素因数の和:771

約数の個数: 64

約数和(自身を含む): 211384800

約数和(自身を除く): 123444320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 313, 320, 439, 626, 640, 878, 1252, 1565, 1756, 2195, 2504, 3130, 3512, 4390, 5008, 6260, 7024, 8780, 10016, 12520, 14048, 17560, 20032, 25040, 28096, 35120, 40064, 50080, 56192, 70240, 100160, 137407, 140480, 200320, 274814, 280960, 549628, 687035, 1099256, 1374070, 2198512, 2748140, 4397024, 5496280, 8794048, 10992560, 17588096, 21985120, 43970240, 87940480]

約数ペア:

[(1, 87940480), (2, 43970240), (4, 21985120), (5, 17588096), (8, 10992560), (10, 8794048), (16, 5496280), (20, 4397024), (32, 2748140), (40, 2198512), (64, 1374070), (80, 1099256), (128, 687035), (160, 549628), (313, 280960), (320, 274814), (439, 200320), (626, 140480), (640, 137407), (878, 100160), (1252, 70240), (1565, 56192), (1756, 50080), (2195, 40064), (2504, 35120), (3130, 28096), (3512, 25040), (4390, 20032), (5008, 17560), (6260, 14048), (7024, 12520), (8780, 10016)]