388697654

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 661893120

約数和(自身を除く): 273195466

約数列:

[1, 2, 23, 31, 37, 46, 53, 62, 74, 106, 139, 278, 713, 851, 1147, 1219, 1426, 1643, 1702, 1961, 2294, 2438, 3197, 3286, 3922, 4309, 5143, 6394, 7367, 8618, 10286, 14734, 26381, 37789, 45103, 52762, 60791, 75578, 90206, 99107, 118289, 121582, 159433, 169441, 198214, 228377, 236578, 272579, 318866, 338882, 456754, 545158, 1398193, 2796386, 3666959, 5252671, 6269317, 7333918, 8449949, 10505342, 12538634, 16899898, 194348827, 388697654]

約数ペア:

[(1, 388697654), (2, 194348827), (23, 16899898), (31, 12538634), (37, 10505342), (46, 8449949), (53, 7333918), (62, 6269317), (74, 5252671), (106, 3666959), (139, 2796386), (278, 1398193), (713, 545158), (851, 456754), (1147, 338882), (1219, 318866), (1426, 272579), (1643, 236578), (1702, 228377), (1961, 198214), (2294, 169441), (2438, 159433), (3197, 121582), (3286, 118289), (3922, 99107), (4309, 90206), (5143, 75578), (6394, 60791), (7367, 52762), (8618, 45103), (10286, 37789), (14734, 26381)]