20459488

素因数分解:

$2^5\times 7^1\times {\mathrm{149}}^1\times {\mathrm{613}}^1$

素因数の和:779

約数の個数: 48

約数和(自身を含む): 46418400

約数和(自身を除く): 25958912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 149, 224, 298, 596, 613, 1043, 1192, 1226, 2086, 2384, 2452, 4172, 4291, 4768, 4904, 8344, 8582, 9808, 16688, 17164, 19616, 33376, 34328, 68656, 91337, 137312, 182674, 365348, 639359, 730696, 1278718, 1461392, 2557436, 2922784, 5114872, 10229744, 20459488]

約数ペア:

[(1, 20459488), (2, 10229744), (4, 5114872), (7, 2922784), (8, 2557436), (14, 1461392), (16, 1278718), (28, 730696), (32, 639359), (56, 365348), (112, 182674), (149, 137312), (224, 91337), (298, 68656), (596, 34328), (613, 33376), (1043, 19616), (1192, 17164), (1226, 16688), (2086, 9808), (2384, 8582), (2452, 8344), (4172, 4904), (4291, 4768)]