66657040

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 160704000

約数和(自身を除く): 94046960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 79, 80, 106, 158, 199, 212, 265, 316, 395, 398, 424, 530, 632, 790, 796, 848, 995, 1060, 1264, 1580, 1592, 1990, 2120, 3160, 3184, 3980, 4187, 4240, 6320, 7960, 8374, 10547, 15721, 15920, 16748, 20935, 21094, 31442, 33496, 41870, 42188, 52735, 62884, 66992, 78605, 83740, 84376, 105470, 125768, 157210, 167480, 168752, 210940, 251536, 314420, 334960, 421880, 628840, 833213, 843760, 1257680, 1666426, 3332852, 4166065, 6665704, 8332130, 13331408, 16664260, 33328520, 66657040]

約数ペア:

[(1, 66657040), (2, 33328520), (4, 16664260), (5, 13331408), (8, 8332130), (10, 6665704), (16, 4166065), (20, 3332852), (40, 1666426), (53, 1257680), (79, 843760), (80, 833213), (106, 628840), (158, 421880), (199, 334960), (212, 314420), (265, 251536), (316, 210940), (395, 168752), (398, 167480), (424, 157210), (530, 125768), (632, 105470), (790, 84376), (796, 83740), (848, 78605), (995, 66992), (1060, 62884), (1264, 52735), (1580, 42188), (1592, 41870), (1990, 33496), (2120, 31442), (3160, 21094), (3184, 20935), (3980, 16748), (4187, 15920), (4240, 15721), (6320, 10547), (7960, 8374)]