1281737984

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{947}}^1$

素因数の和:1291

約数の個数: 72

約数和(自身を含む): 2720547648

約数和(自身を除く): 1438809664

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 311, 544, 622, 947, 1088, 1244, 1894, 2176, 2488, 3788, 4352, 4976, 5287, 7576, 9952, 10574, 15152, 16099, 19904, 21148, 30304, 32198, 39808, 42296, 60608, 64396, 79616, 84592, 121216, 128792, 169184, 242432, 257584, 294517, 338368, 515168, 589034, 676736, 1030336, 1178068, 1353472, 2060672, 2356136, 4121344, 4712272, 5006789, 9424544, 10013578, 18849088, 20027156, 37698176, 40054312, 75396352, 80108624, 160217248, 320434496, 640868992, 1281737984]

約数ペア:

[(1, 1281737984), (2, 640868992), (4, 320434496), (8, 160217248), (16, 80108624), (17, 75396352), (32, 40054312), (34, 37698176), (64, 20027156), (68, 18849088), (128, 10013578), (136, 9424544), (256, 5006789), (272, 4712272), (311, 4121344), (544, 2356136), (622, 2060672), (947, 1353472), (1088, 1178068), (1244, 1030336), (1894, 676736), (2176, 589034), (2488, 515168), (3788, 338368), (4352, 294517), (4976, 257584), (5287, 242432), (7576, 169184), (9952, 128792), (10574, 121216), (15152, 84592), (16099, 79616), (19904, 64396), (21148, 60608), (30304, 42296), (32198, 39808)]