19993330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 23137550

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 59, 70, 94, 103, 118, 206, 235, 295, 329, 413, 470, 515, 590, 658, 721, 826, 1030, 1442, 1645, 2065, 2773, 3290, 3605, 4130, 4841, 5546, 6077, 7210, 9682, 12154, 13865, 19411, 24205, 27730, 30385, 33887, 38822, 42539, 48410, 60770, 67774, 85078, 97055, 169435, 194110, 212695, 285619, 338870, 425390, 571238, 1428095, 1999333, 2856190, 3998666, 9996665, 19993330]

約数ペア:

[(1, 19993330), (2, 9996665), (5, 3998666), (7, 2856190), (10, 1999333), (14, 1428095), (35, 571238), (47, 425390), (59, 338870), (70, 285619), (94, 212695), (103, 194110), (118, 169435), (206, 97055), (235, 85078), (295, 67774), (329, 60770), (413, 48410), (470, 42539), (515, 38822), (590, 33887), (658, 30385), (721, 27730), (826, 24205), (1030, 19411), (1442, 13865), (1645, 12154), (2065, 9682), (2773, 7210), (3290, 6077), (3605, 5546), (4130, 4841)]