20155731680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{782443}}^1$

素因数の和:782488

約数の個数: 96

約数和(自身を含む): 56786655744

約数和(自身を除く): 36630924064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 322, 368, 460, 560, 644, 736, 805, 920, 1120, 1288, 1610, 1840, 2576, 3220, 3680, 5152, 6440, 12880, 25760, 782443, 1564886, 3129772, 3912215, 5477101, 6259544, 7824430, 10954202, 12519088, 15648860, 17996189, 21908404, 25038176, 27385505, 31297720, 35992378, 43816808, 54771010, 62595440, 71984756, 87633616, 89980945, 109542020, 125190880, 125973323, 143969512, 175267232, 179961890, 219084040, 251946646, 287939024, 359923780, 438168080, 503893292, 575878048, 629866615, 719847560, 876336160, 1007786584, 1259733230, 1439695120, 2015573168, 2519466460, 2879390240, 4031146336, 5038932920, 10077865840, 20155731680]

約数ペア:

[(1, 20155731680), (2, 10077865840), (4, 5038932920), (5, 4031146336), (7, 2879390240), (8, 2519466460), (10, 2015573168), (14, 1439695120), (16, 1259733230), (20, 1007786584), (23, 876336160), (28, 719847560), (32, 629866615), (35, 575878048), (40, 503893292), (46, 438168080), (56, 359923780), (70, 287939024), (80, 251946646), (92, 219084040), (112, 179961890), (115, 175267232), (140, 143969512), (160, 125973323), (161, 125190880), (184, 109542020), (224, 89980945), (230, 87633616), (280, 71984756), (322, 62595440), (368, 54771010), (460, 43816808), (560, 35992378), (644, 31297720), (736, 27385505), (805, 25038176), (920, 21908404), (1120, 17996189), (1288, 15648860), (1610, 12519088), (1840, 10954202), (2576, 7824430), (3220, 6259544), (3680, 5477101), (5152, 3912215), (6440, 3129772), (12880, 1564886), (25760, 782443)]