331311448

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 683242560

約数和(自身を除く): 351931112

約数列:

[1, 2, 4, 8, 13, 26, 52, 103, 104, 157, 197, 206, 314, 394, 412, 628, 788, 824, 1256, 1339, 1576, 2041, 2561, 2678, 4082, 5122, 5356, 8164, 10244, 10712, 16171, 16328, 20291, 20488, 30929, 32342, 40582, 61858, 64684, 81164, 123716, 129368, 162328, 210223, 247432, 263783, 402077, 420446, 527566, 804154, 840892, 1055132, 1608308, 1681784, 2110264, 3185687, 3216616, 6371374, 12742748, 25485496, 41413931, 82827862, 165655724, 331311448]

約数ペア:

[(1, 331311448), (2, 165655724), (4, 82827862), (8, 41413931), (13, 25485496), (26, 12742748), (52, 6371374), (103, 3216616), (104, 3185687), (157, 2110264), (197, 1681784), (206, 1608308), (314, 1055132), (394, 840892), (412, 804154), (628, 527566), (788, 420446), (824, 402077), (1256, 263783), (1339, 247432), (1576, 210223), (2041, 162328), (2561, 129368), (2678, 123716), (4082, 81164), (5122, 64684), (5356, 61858), (8164, 40582), (10244, 32342), (10712, 30929), (16171, 20488), (16328, 20291)]