2019165880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{6317}}^1$

素因数の和:6520

約数の個数: 64

約数和(自身を含む): 4653586080

約数和(自身を除く): 2634420200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 131, 244, 262, 305, 488, 524, 610, 655, 1048, 1220, 1310, 2440, 2620, 5240, 6317, 7991, 12634, 15982, 25268, 31585, 31964, 39955, 50536, 63170, 63928, 79910, 126340, 159820, 252680, 319640, 385337, 770674, 827527, 1541348, 1655054, 1926685, 3082696, 3310108, 3853370, 4137635, 6620216, 7706740, 8275270, 15413480, 16550540, 33101080, 50479147, 100958294, 201916588, 252395735, 403833176, 504791470, 1009582940, 2019165880]

約数ペア:

[(1, 2019165880), (2, 1009582940), (4, 504791470), (5, 403833176), (8, 252395735), (10, 201916588), (20, 100958294), (40, 50479147), (61, 33101080), (122, 16550540), (131, 15413480), (244, 8275270), (262, 7706740), (305, 6620216), (488, 4137635), (524, 3853370), (610, 3310108), (655, 3082696), (1048, 1926685), (1220, 1655054), (1310, 1541348), (2440, 827527), (2620, 770674), (5240, 385337), (6317, 319640), (7991, 252680), (12634, 159820), (15982, 126340), (25268, 79910), (31585, 63928), (31964, 63170), (39955, 50536)]