257132280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:433

約数の個数: 128

約数和(自身を含む): 791208000

約数和(自身を除く): 534075720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 149, 197, 219, 292, 298, 365, 394, 438, 447, 584, 591, 596, 730, 745, 788, 876, 894, 985, 1095, 1182, 1192, 1460, 1490, 1576, 1752, 1788, 1970, 2190, 2235, 2364, 2920, 2955, 2980, 3576, 3940, 4380, 4470, 4728, 5910, 5960, 7880, 8760, 8940, 10877, 11820, 14381, 17880, 21754, 23640, 28762, 29353, 32631, 43143, 43508, 54385, 57524, 58706, 65262, 71905, 86286, 87016, 88059, 108770, 115048, 117412, 130524, 143810, 146765, 163155, 172572, 176118, 215715, 217540, 234824, 261048, 287620, 293530, 326310, 345144, 352236, 431430, 435080, 440295, 575240, 587060, 652620, 704472, 862860, 880590, 1174120, 1305240, 1725720, 1761180, 2142769, 3522360, 4285538, 6428307, 8571076, 10713845, 12856614, 17142152, 21427690, 25713228, 32141535, 42855380, 51426456, 64283070, 85710760, 128566140, 257132280]

約数ペア:

[(1, 257132280), (2, 128566140), (3, 85710760), (4, 64283070), (5, 51426456), (6, 42855380), (8, 32141535), (10, 25713228), (12, 21427690), (15, 17142152), (20, 12856614), (24, 10713845), (30, 8571076), (40, 6428307), (60, 4285538), (73, 3522360), (120, 2142769), (146, 1761180), (149, 1725720), (197, 1305240), (219, 1174120), (292, 880590), (298, 862860), (365, 704472), (394, 652620), (438, 587060), (447, 575240), (584, 440295), (591, 435080), (596, 431430), (730, 352236), (745, 345144), (788, 326310), (876, 293530), (894, 287620), (985, 261048), (1095, 234824), (1182, 217540), (1192, 215715), (1460, 176118), (1490, 172572), (1576, 163155), (1752, 146765), (1788, 143810), (1970, 130524), (2190, 117412), (2235, 115048), (2364, 108770), (2920, 88059), (2955, 87016), (2980, 86286), (3576, 71905), (3940, 65262), (4380, 58706), (4470, 57524), (4728, 54385), (5910, 43508), (5960, 43143), (7880, 32631), (8760, 29353), (8940, 28762), (10877, 23640), (11820, 21754), (14381, 17880)]