320712448

素因数分解:

$2^8\times 7^2\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:758

約数の個数: 108

約数和(自身を含む): 765923592

約数和(自身を除く): 445211144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 49, 56, 64, 74, 98, 112, 128, 148, 196, 224, 256, 259, 296, 392, 448, 518, 592, 691, 784, 896, 1036, 1184, 1382, 1568, 1792, 1813, 2072, 2368, 2764, 3136, 3626, 4144, 4736, 4837, 5528, 6272, 7252, 8288, 9472, 9674, 11056, 12544, 14504, 16576, 19348, 22112, 25567, 29008, 33152, 33859, 38696, 44224, 51134, 58016, 66304, 67718, 77392, 88448, 102268, 116032, 135436, 154784, 176896, 178969, 204536, 232064, 270872, 309568, 357938, 409072, 464128, 541744, 619136, 715876, 818144, 1083488, 1238272, 1252783, 1431752, 1636288, 2166976, 2505566, 2863504, 3272576, 4333952, 5011132, 5727008, 6545152, 8667904, 10022264, 11454016, 20044528, 22908032, 40089056, 45816064, 80178112, 160356224, 320712448]

約数ペア:

[(1, 320712448), (2, 160356224), (4, 80178112), (7, 45816064), (8, 40089056), (14, 22908032), (16, 20044528), (28, 11454016), (32, 10022264), (37, 8667904), (49, 6545152), (56, 5727008), (64, 5011132), (74, 4333952), (98, 3272576), (112, 2863504), (128, 2505566), (148, 2166976), (196, 1636288), (224, 1431752), (256, 1252783), (259, 1238272), (296, 1083488), (392, 818144), (448, 715876), (518, 619136), (592, 541744), (691, 464128), (784, 409072), (896, 357938), (1036, 309568), (1184, 270872), (1382, 232064), (1568, 204536), (1792, 178969), (1813, 176896), (2072, 154784), (2368, 135436), (2764, 116032), (3136, 102268), (3626, 88448), (4144, 77392), (4736, 67718), (4837, 66304), (5528, 58016), (6272, 51134), (7252, 44224), (8288, 38696), (9472, 33859), (9674, 33152), (11056, 29008), (12544, 25567), (14504, 22112), (16576, 19348)]