2008194680840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6173}}^1\times {\mathrm{189139}}^1$

素因数の和:195366

約数の個数: 64

約数和(自身を含む): 4624291425600

約数和(自身を除く): 2616096744760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 6173, 12346, 24692, 30865, 49384, 61730, 123460, 189139, 246920, 265439, 378278, 530878, 756556, 945695, 1061756, 1327195, 1513112, 1891390, 2123512, 2654390, 3782780, 5308780, 7565560, 8132977, 10617560, 16265954, 32531908, 40664885, 65063816, 81329770, 162659540, 325319080, 1167555047, 2335110094, 4670220188, 5837775235, 9340440376, 11675550470, 23351100940, 46702201880, 50204867021, 100409734042, 200819468084, 251024335105, 401638936168, 502048670210, 1004097340420, 2008194680840]

約数ペア:

[(1, 2008194680840), (2, 1004097340420), (4, 502048670210), (5, 401638936168), (8, 251024335105), (10, 200819468084), (20, 100409734042), (40, 50204867021), (43, 46702201880), (86, 23351100940), (172, 11675550470), (215, 9340440376), (344, 5837775235), (430, 4670220188), (860, 2335110094), (1720, 1167555047), (6173, 325319080), (12346, 162659540), (24692, 81329770), (30865, 65063816), (49384, 40664885), (61730, 32531908), (123460, 16265954), (189139, 10617560), (246920, 8132977), (265439, 7565560), (378278, 5308780), (530878, 3782780), (756556, 2654390), (945695, 2123512), (1061756, 1891390), (1327195, 1513112)]