256113280

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:306

約数の個数: 128

約数和(自身を含む): 648622080

約数和(自身を除く): 392508800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 127, 128, 137, 160, 184, 230, 254, 274, 320, 368, 460, 508, 548, 635, 640, 685, 736, 920, 1016, 1096, 1270, 1370, 1472, 1840, 2032, 2192, 2540, 2740, 2921, 2944, 3151, 3680, 4064, 4384, 5080, 5480, 5842, 6302, 7360, 8128, 8768, 10160, 10960, 11684, 12604, 14605, 14720, 15755, 16256, 17399, 17536, 20320, 21920, 23368, 25208, 29210, 31510, 34798, 40640, 43840, 46736, 50416, 58420, 63020, 69596, 81280, 86995, 87680, 93472, 100832, 116840, 126040, 139192, 173990, 186944, 201664, 233680, 252080, 278384, 347980, 373888, 400177, 403328, 467360, 504160, 556768, 695960, 800354, 934720, 1008320, 1113536, 1391920, 1600708, 1869440, 2000885, 2016640, 2227072, 2783840, 3201416, 4001770, 5567680, 6402832, 8003540, 11135360, 12805664, 16007080, 25611328, 32014160, 51222656, 64028320, 128056640, 256113280]

約数ペア:

[(1, 256113280), (2, 128056640), (4, 64028320), (5, 51222656), (8, 32014160), (10, 25611328), (16, 16007080), (20, 12805664), (23, 11135360), (32, 8003540), (40, 6402832), (46, 5567680), (64, 4001770), (80, 3201416), (92, 2783840), (115, 2227072), (127, 2016640), (128, 2000885), (137, 1869440), (160, 1600708), (184, 1391920), (230, 1113536), (254, 1008320), (274, 934720), (320, 800354), (368, 695960), (460, 556768), (508, 504160), (548, 467360), (635, 403328), (640, 400177), (685, 373888), (736, 347980), (920, 278384), (1016, 252080), (1096, 233680), (1270, 201664), (1370, 186944), (1472, 173990), (1840, 139192), (2032, 126040), (2192, 116840), (2540, 100832), (2740, 93472), (2921, 87680), (2944, 86995), (3151, 81280), (3680, 69596), (4064, 63020), (4384, 58420), (5080, 50416), (5480, 46736), (5842, 43840), (6302, 40640), (7360, 34798), (8128, 31510), (8768, 29210), (10160, 25208), (10960, 23368), (11684, 21920), (12604, 20320), (14605, 17536), (14720, 17399), (15755, 16256)]