399683744

素因数分解:

$2^5\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:430

約数の個数: 72

約数和(自身を含む): 835538004

約数和(自身を除く): 435854260

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 82, 124, 164, 248, 317, 328, 496, 634, 656, 961, 992, 1268, 1271, 1312, 1922, 2536, 2542, 3844, 5072, 5084, 7688, 9827, 10144, 10168, 12997, 15376, 19654, 20336, 25994, 30752, 39308, 39401, 40672, 51988, 78616, 78802, 103976, 157232, 157604, 207952, 304637, 314464, 315208, 402907, 415904, 609274, 630416, 805814, 1218548, 1260832, 1611628, 2437096, 3223256, 4874192, 6446512, 9748384, 12490117, 12893024, 24980234, 49960468, 99920936, 199841872, 399683744]

約数ペア:

[(1, 399683744), (2, 199841872), (4, 99920936), (8, 49960468), (16, 24980234), (31, 12893024), (32, 12490117), (41, 9748384), (62, 6446512), (82, 4874192), (124, 3223256), (164, 2437096), (248, 1611628), (317, 1260832), (328, 1218548), (496, 805814), (634, 630416), (656, 609274), (961, 415904), (992, 402907), (1268, 315208), (1271, 314464), (1312, 304637), (1922, 207952), (2536, 157604), (2542, 157232), (3844, 103976), (5072, 78802), (5084, 78616), (7688, 51988), (9827, 40672), (10144, 39401), (10168, 39308), (12997, 30752), (15376, 25994), (19654, 20336)]