19948890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51151}}^1$

素因数の和:51174

約数の個数: 32

約数和(自身を含む): 51561216

約数和(自身を除く): 31612326

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51151, 102302, 153453, 255755, 306906, 511510, 664963, 767265, 1329926, 1534530, 1994889, 3324815, 3989778, 6649630, 9974445, 19948890]

約数ペア:

[(1, 19948890), (2, 9974445), (3, 6649630), (5, 3989778), (6, 3324815), (10, 1994889), (13, 1534530), (15, 1329926), (26, 767265), (30, 664963), (39, 511510), (65, 306906), (78, 255755), (130, 153453), (195, 102302), (390, 51151)]