290995792

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:380

約数の個数: 80

約数和(自身を含む): 615764160

約数和(自身を除く): 324768368

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 113, 152, 172, 197, 226, 304, 344, 394, 452, 688, 788, 817, 904, 1576, 1634, 1808, 2147, 3152, 3268, 3743, 4294, 4859, 6536, 7486, 8471, 8588, 9718, 13072, 14972, 16942, 17176, 19436, 22261, 29944, 33884, 34352, 38872, 44522, 59888, 67768, 77744, 89044, 92321, 135536, 160949, 178088, 184642, 321898, 356176, 369284, 422959, 643796, 738568, 845918, 957223, 1287592, 1477136, 1691836, 1914446, 2575184, 3383672, 3828892, 6767344, 7657784, 15315568, 18187237, 36374474, 72748948, 145497896, 290995792]

約数ペア:

[(1, 290995792), (2, 145497896), (4, 72748948), (8, 36374474), (16, 18187237), (19, 15315568), (38, 7657784), (43, 6767344), (76, 3828892), (86, 3383672), (113, 2575184), (152, 1914446), (172, 1691836), (197, 1477136), (226, 1287592), (304, 957223), (344, 845918), (394, 738568), (452, 643796), (688, 422959), (788, 369284), (817, 356176), (904, 321898), (1576, 184642), (1634, 178088), (1808, 160949), (2147, 135536), (3152, 92321), (3268, 89044), (3743, 77744), (4294, 67768), (4859, 59888), (6536, 44522), (7486, 38872), (8471, 34352), (8588, 33884), (9718, 29944), (13072, 22261), (14972, 19436), (16942, 17176)]