19888992

素因数分解:

$2^5\times 3^2\times {\mathrm{53}}^1\times {\mathrm{1303}}^1$

素因数の和:1372

約数の個数: 72

約数和(自身を含む): 57670704

約数和(自身を除く): 37781712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 53, 72, 96, 106, 144, 159, 212, 288, 318, 424, 477, 636, 848, 954, 1272, 1303, 1696, 1908, 2544, 2606, 3816, 3909, 5088, 5212, 7632, 7818, 10424, 11727, 15264, 15636, 20848, 23454, 31272, 41696, 46908, 62544, 69059, 93816, 125088, 138118, 187632, 207177, 276236, 375264, 414354, 552472, 621531, 828708, 1104944, 1243062, 1657416, 2209888, 2486124, 3314832, 4972248, 6629664, 9944496, 19888992]

約数ペア:

[(1, 19888992), (2, 9944496), (3, 6629664), (4, 4972248), (6, 3314832), (8, 2486124), (9, 2209888), (12, 1657416), (16, 1243062), (18, 1104944), (24, 828708), (32, 621531), (36, 552472), (48, 414354), (53, 375264), (72, 276236), (96, 207177), (106, 187632), (144, 138118), (159, 125088), (212, 93816), (288, 69059), (318, 62544), (424, 46908), (477, 41696), (636, 31272), (848, 23454), (954, 20848), (1272, 15636), (1303, 15264), (1696, 11727), (1908, 10424), (2544, 7818), (2606, 7632), (3816, 5212), (3909, 5088)]