19992390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1289}}^1$

素因数の和:1357

約数の個数: 64

約数和(自身を含む): 53498880

約数和(自身を除く): 33506490

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 47, 55, 66, 94, 110, 141, 165, 235, 282, 330, 470, 517, 705, 1034, 1289, 1410, 1551, 2578, 2585, 3102, 3867, 5170, 6445, 7734, 7755, 12890, 14179, 15510, 19335, 28358, 38670, 42537, 60583, 70895, 85074, 121166, 141790, 181749, 212685, 302915, 363498, 425370, 605830, 666413, 908745, 1332826, 1817490, 1999239, 3332065, 3998478, 6664130, 9996195, 19992390]

約数ペア:

[(1, 19992390), (2, 9996195), (3, 6664130), (5, 3998478), (6, 3332065), (10, 1999239), (11, 1817490), (15, 1332826), (22, 908745), (30, 666413), (33, 605830), (47, 425370), (55, 363498), (66, 302915), (94, 212685), (110, 181749), (141, 141790), (165, 121166), (235, 85074), (282, 70895), (330, 60583), (470, 42537), (517, 38670), (705, 28358), (1034, 19335), (1289, 15510), (1410, 14179), (1551, 12890), (2578, 7755), (2585, 7734), (3102, 6445), (3867, 5170)]