19123580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5939}}^1$

素因数の和:5978

約数の個数: 48

約数和(自身を含む): 47900160

約数和(自身を除く): 28776580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5939, 11878, 23756, 29695, 41573, 59390, 83146, 118780, 136597, 166292, 207865, 273194, 415730, 546388, 682985, 831460, 956179, 1365970, 1912358, 2731940, 3824716, 4780895, 9561790, 19123580]

約数ペア:

[(1, 19123580), (2, 9561790), (4, 4780895), (5, 3824716), (7, 2731940), (10, 1912358), (14, 1365970), (20, 956179), (23, 831460), (28, 682985), (35, 546388), (46, 415730), (70, 273194), (92, 207865), (115, 166292), (140, 136597), (161, 118780), (230, 83146), (322, 59390), (460, 41573), (644, 29695), (805, 23756), (1610, 11878), (3220, 5939)]