19178060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{487}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 44271360

約数和(自身を除く): 25093300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 487, 716, 895, 974, 1790, 1948, 1969, 2435, 3580, 3938, 4870, 5357, 7876, 9740, 9845, 10714, 19690, 21428, 26785, 39380, 53570, 87173, 107140, 174346, 348692, 435865, 871730, 958903, 1743460, 1917806, 3835612, 4794515, 9589030, 19178060]

約数ペア:

[(1, 19178060), (2, 9589030), (4, 4794515), (5, 3835612), (10, 1917806), (11, 1743460), (20, 958903), (22, 871730), (44, 435865), (55, 348692), (110, 174346), (179, 107140), (220, 87173), (358, 53570), (487, 39380), (716, 26785), (895, 21428), (974, 19690), (1790, 10714), (1948, 9845), (1969, 9740), (2435, 7876), (3580, 5357), (3938, 4870)]