13882220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{709}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 32205600

約数和(自身を除く): 18323380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 709, 890, 979, 1418, 1780, 1958, 2836, 3545, 3916, 4895, 7090, 7799, 9790, 14180, 15598, 19580, 31196, 38995, 63101, 77990, 126202, 155980, 252404, 315505, 631010, 694111, 1262020, 1388222, 2776444, 3470555, 6941110, 13882220]

約数ペア:

[(1, 13882220), (2, 6941110), (4, 3470555), (5, 2776444), (10, 1388222), (11, 1262020), (20, 694111), (22, 631010), (44, 315505), (55, 252404), (89, 155980), (110, 126202), (178, 77990), (220, 63101), (356, 38995), (445, 31196), (709, 19580), (890, 15598), (979, 14180), (1418, 9790), (1780, 7799), (1958, 7090), (2836, 4895), (3545, 3916)]