81441712

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:143

約数の個数: 120

約数和(自身を含む): 189987840

約数和(自身を除く): 108546128

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 31, 44, 46, 59, 62, 88, 92, 118, 121, 124, 176, 184, 236, 242, 248, 253, 341, 368, 472, 484, 496, 506, 649, 682, 713, 944, 968, 1012, 1298, 1357, 1364, 1426, 1829, 1936, 2024, 2596, 2714, 2728, 2783, 2852, 3658, 3751, 4048, 5192, 5428, 5456, 5566, 5704, 7139, 7316, 7502, 7843, 10384, 10856, 11132, 11408, 14278, 14632, 14927, 15004, 15686, 20119, 21712, 22264, 28556, 29264, 29854, 30008, 31372, 40238, 42067, 44528, 57112, 59708, 60016, 62744, 80476, 84134, 86273, 114224, 119416, 125488, 160952, 164197, 168268, 172546, 221309, 238832, 321904, 328394, 336536, 345092, 442618, 462737, 656788, 673072, 690184, 885236, 925474, 1313576, 1380368, 1770472, 1850948, 2627152, 3540944, 3701896, 5090107, 7403792, 10180214, 20360428, 40720856, 81441712]

約数ペア:

[(1, 81441712), (2, 40720856), (4, 20360428), (8, 10180214), (11, 7403792), (16, 5090107), (22, 3701896), (23, 3540944), (31, 2627152), (44, 1850948), (46, 1770472), (59, 1380368), (62, 1313576), (88, 925474), (92, 885236), (118, 690184), (121, 673072), (124, 656788), (176, 462737), (184, 442618), (236, 345092), (242, 336536), (248, 328394), (253, 321904), (341, 238832), (368, 221309), (472, 172546), (484, 168268), (496, 164197), (506, 160952), (649, 125488), (682, 119416), (713, 114224), (944, 86273), (968, 84134), (1012, 80476), (1298, 62744), (1357, 60016), (1364, 59708), (1426, 57112), (1829, 44528), (1936, 42067), (2024, 40238), (2596, 31372), (2714, 30008), (2728, 29854), (2783, 29264), (2852, 28556), (3658, 22264), (3751, 21712), (4048, 20119), (5192, 15686), (5428, 15004), (5456, 14927), (5566, 14632), (5704, 14278), (7139, 11408), (7316, 11132), (7502, 10856), (7843, 10384)]