19889580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:343

約数の個数: 96

約数和(自身を含む): 59673600

約数和(自身を除く): 39784020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 73, 76, 95, 114, 146, 190, 219, 228, 239, 285, 292, 365, 380, 438, 478, 570, 717, 730, 876, 956, 1095, 1140, 1195, 1387, 1434, 1460, 2190, 2390, 2774, 2868, 3585, 4161, 4380, 4541, 4780, 5548, 6935, 7170, 8322, 9082, 13623, 13870, 14340, 16644, 17447, 18164, 20805, 22705, 27246, 27740, 34894, 41610, 45410, 52341, 54492, 68115, 69788, 83220, 87235, 90820, 104682, 136230, 174470, 209364, 261705, 272460, 331493, 348940, 523410, 662986, 994479, 1046820, 1325972, 1657465, 1988958, 3314930, 3977916, 4972395, 6629860, 9944790, 19889580]

約数ペア:

[(1, 19889580), (2, 9944790), (3, 6629860), (4, 4972395), (5, 3977916), (6, 3314930), (10, 1988958), (12, 1657465), (15, 1325972), (19, 1046820), (20, 994479), (30, 662986), (38, 523410), (57, 348940), (60, 331493), (73, 272460), (76, 261705), (95, 209364), (114, 174470), (146, 136230), (190, 104682), (219, 90820), (228, 87235), (239, 83220), (285, 69788), (292, 68115), (365, 54492), (380, 52341), (438, 45410), (478, 41610), (570, 34894), (717, 27740), (730, 27246), (876, 22705), (956, 20805), (1095, 18164), (1140, 17447), (1195, 16644), (1387, 14340), (1434, 13870), (1460, 13623), (2190, 9082), (2390, 8322), (2774, 7170), (2868, 6935), (3585, 5548), (4161, 4780), (4380, 4541)]