20213780504

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1571}}^1\times {\mathrm{2557}}^1$

素因数の和:4188

約数の個数: 64

約数和(自身を含む): 41257265760

約数和(自身を除く): 21043485256

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 1571, 2516, 2557, 3142, 5032, 5114, 6284, 10228, 12568, 20456, 26707, 43469, 53414, 58127, 86938, 94609, 106828, 116254, 173876, 189218, 213656, 232508, 347752, 378436, 465016, 756872, 988159, 1608353, 1976318, 3216706, 3952636, 4017047, 6433412, 7905272, 8034094, 12866824, 16068188, 32136376, 68289799, 136579598, 148630739, 273159196, 297261478, 546318392, 594522956, 1189045912, 2526722563, 5053445126, 10106890252, 20213780504]

約数ペア:

[(1, 20213780504), (2, 10106890252), (4, 5053445126), (8, 2526722563), (17, 1189045912), (34, 594522956), (37, 546318392), (68, 297261478), (74, 273159196), (136, 148630739), (148, 136579598), (296, 68289799), (629, 32136376), (1258, 16068188), (1571, 12866824), (2516, 8034094), (2557, 7905272), (3142, 6433412), (5032, 4017047), (5114, 3952636), (6284, 3216706), (10228, 1976318), (12568, 1608353), (20456, 988159), (26707, 756872), (43469, 465016), (53414, 378436), (58127, 347752), (86938, 232508), (94609, 213656), (106828, 189218), (116254, 173876)]