216711440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2767}}^1$

素因数の和:2880

約数の個数: 80

約数和(自身を含む): 556035840

約数和(自身を除く): 339324400

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 89, 110, 176, 178, 220, 356, 440, 445, 712, 880, 890, 979, 1424, 1780, 1958, 2767, 3560, 3916, 4895, 5534, 7120, 7832, 9790, 11068, 13835, 15664, 19580, 22136, 27670, 30437, 39160, 44272, 55340, 60874, 78320, 110680, 121748, 152185, 221360, 243496, 246263, 304370, 486992, 492526, 608740, 985052, 1217480, 1231315, 1970104, 2434960, 2462630, 2708893, 3940208, 4925260, 5417786, 9850520, 10835572, 13544465, 19701040, 21671144, 27088930, 43342288, 54177860, 108355720, 216711440]

約数ペア:

[(1, 216711440), (2, 108355720), (4, 54177860), (5, 43342288), (8, 27088930), (10, 21671144), (11, 19701040), (16, 13544465), (20, 10835572), (22, 9850520), (40, 5417786), (44, 4925260), (55, 3940208), (80, 2708893), (88, 2462630), (89, 2434960), (110, 1970104), (176, 1231315), (178, 1217480), (220, 985052), (356, 608740), (440, 492526), (445, 486992), (712, 304370), (880, 246263), (890, 243496), (979, 221360), (1424, 152185), (1780, 121748), (1958, 110680), (2767, 78320), (3560, 60874), (3916, 55340), (4895, 44272), (5534, 39160), (7120, 30437), (7832, 27670), (9790, 22136), (11068, 19580), (13835, 15664)]