20185721776

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{16061}}^1$

素因数の和:16310

約数の個数: 80

約数和(自身を含む): 44048171808

約数和(自身を除く): 23862450032

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 193, 296, 386, 407, 592, 772, 814, 1544, 1628, 2123, 3088, 3256, 4246, 6512, 7141, 8492, 14282, 16061, 16984, 28564, 32122, 33968, 57128, 64244, 78551, 114256, 128488, 157102, 176671, 256976, 314204, 353342, 594257, 628408, 706684, 1188514, 1256816, 1413368, 2377028, 2826736, 3099773, 4754056, 6199546, 6536827, 9508112, 12399092, 13073654, 24798184, 26147308, 34097503, 49596368, 52294616, 68195006, 104589232, 114691601, 136390012, 229383202, 272780024, 458766404, 545560048, 917532808, 1261607611, 1835065616, 2523215222, 5046430444, 10092860888, 20185721776]

約数ペア:

[(1, 20185721776), (2, 10092860888), (4, 5046430444), (8, 2523215222), (11, 1835065616), (16, 1261607611), (22, 917532808), (37, 545560048), (44, 458766404), (74, 272780024), (88, 229383202), (148, 136390012), (176, 114691601), (193, 104589232), (296, 68195006), (386, 52294616), (407, 49596368), (592, 34097503), (772, 26147308), (814, 24798184), (1544, 13073654), (1628, 12399092), (2123, 9508112), (3088, 6536827), (3256, 6199546), (4246, 4754056), (6512, 3099773), (7141, 2826736), (8492, 2377028), (14282, 1413368), (16061, 1256816), (16984, 1188514), (28564, 706684), (32122, 628408), (33968, 594257), (57128, 353342), (64244, 314204), (78551, 256976), (114256, 176671), (128488, 157102)]