33328520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 77760000

約数和(自身を除く): 44431480

約数列:

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

約数ペア:

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