19886262032

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{27817}}^1$

素因数の和:28336

約数の個数: 80

約数和(自身を含む): 47519375232

約数和(自身を除く): 27633113200

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 491, 728, 982, 1456, 1964, 3437, 3928, 6383, 6874, 7856, 12766, 13748, 25532, 27496, 27817, 44681, 51064, 54992, 55634, 89362, 102128, 111268, 178724, 194719, 222536, 357448, 361621, 389438, 445072, 714896, 723242, 778876, 1446484, 1557752, 2531347, 2892968, 3115504, 5062694, 5785936, 10125388, 13658147, 20250776, 27316294, 40501552, 54632588, 95607029, 109265176, 177555911, 191214058, 218530352, 355111822, 382428116, 710223644, 764856232, 1242891377, 1420447288, 1529712464, 2485782754, 2840894576, 4971565508, 9943131016, 19886262032]

約数ペア:

[(1, 19886262032), (2, 9943131016), (4, 4971565508), (7, 2840894576), (8, 2485782754), (13, 1529712464), (14, 1420447288), (16, 1242891377), (26, 764856232), (28, 710223644), (52, 382428116), (56, 355111822), (91, 218530352), (104, 191214058), (112, 177555911), (182, 109265176), (208, 95607029), (364, 54632588), (491, 40501552), (728, 27316294), (982, 20250776), (1456, 13658147), (1964, 10125388), (3437, 5785936), (3928, 5062694), (6383, 3115504), (6874, 2892968), (7856, 2531347), (12766, 1557752), (13748, 1446484), (25532, 778876), (27496, 723242), (27817, 714896), (44681, 445072), (51064, 389438), (54992, 361621), (55634, 357448), (89362, 222536), (102128, 194719), (111268, 178724)]