20185380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{883}}^1$

素因数の和:1025

約数の個数: 72

約数和(自身を含む): 61780992

約数和(自身を除く): 41595612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 883, 1143, 1270, 1524, 1766, 1905, 2286, 2540, 2649, 3532, 3810, 4415, 4572, 5298, 5715, 7620, 7947, 8830, 10596, 11430, 13245, 15894, 17660, 22860, 26490, 31788, 39735, 52980, 79470, 112141, 158940, 224282, 336423, 448564, 560705, 672846, 1009269, 1121410, 1345692, 1682115, 2018538, 2242820, 3364230, 4037076, 5046345, 6728460, 10092690, 20185380]

約数ペア:

[(1, 20185380), (2, 10092690), (3, 6728460), (4, 5046345), (5, 4037076), (6, 3364230), (9, 2242820), (10, 2018538), (12, 1682115), (15, 1345692), (18, 1121410), (20, 1009269), (30, 672846), (36, 560705), (45, 448564), (60, 336423), (90, 224282), (127, 158940), (180, 112141), (254, 79470), (381, 52980), (508, 39735), (635, 31788), (762, 26490), (883, 22860), (1143, 17660), (1270, 15894), (1524, 13245), (1766, 11430), (1905, 10596), (2286, 8830), (2540, 7947), (2649, 7620), (3532, 5715), (3810, 5298), (4415, 4572)]