208153540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:617

約数の個数: 96

約数和(自身を含む): 519450624

約数和(自身を除く): 311297084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 71, 86, 140, 142, 172, 215, 284, 301, 355, 430, 487, 497, 602, 710, 860, 974, 994, 1204, 1420, 1505, 1948, 1988, 2435, 2485, 3010, 3053, 3409, 4870, 4970, 6020, 6106, 6818, 9740, 9940, 12212, 13636, 15265, 17045, 20941, 21371, 30530, 34090, 34577, 41882, 42742, 61060, 68180, 69154, 83764, 85484, 104705, 106855, 138308, 146587, 172885, 209410, 213710, 242039, 293174, 345770, 418820, 427420, 484078, 586348, 691540, 732935, 968156, 1210195, 1465870, 1486811, 2420390, 2931740, 2973622, 4840780, 5947244, 7434055, 10407677, 14868110, 20815354, 29736220, 41630708, 52038385, 104076770, 208153540]

約数ペア:

[(1, 208153540), (2, 104076770), (4, 52038385), (5, 41630708), (7, 29736220), (10, 20815354), (14, 14868110), (20, 10407677), (28, 7434055), (35, 5947244), (43, 4840780), (70, 2973622), (71, 2931740), (86, 2420390), (140, 1486811), (142, 1465870), (172, 1210195), (215, 968156), (284, 732935), (301, 691540), (355, 586348), (430, 484078), (487, 427420), (497, 418820), (602, 345770), (710, 293174), (860, 242039), (974, 213710), (994, 209410), (1204, 172885), (1420, 146587), (1505, 138308), (1948, 106855), (1988, 104705), (2435, 85484), (2485, 83764), (3010, 69154), (3053, 68180), (3409, 61060), (4870, 42742), (4970, 41882), (6020, 34577), (6106, 34090), (6818, 30530), (9740, 21371), (9940, 20941), (12212, 17045), (13636, 15265)]