20015872

素因数分解:

$2^8\times {\mathrm{41}}^1\times {\mathrm{1907}}^1$

素因数の和:1964

約数の個数: 36

約数和(自身を含む): 40949496

約数和(自身を除く): 20933624

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 256, 328, 656, 1312, 1907, 2624, 3814, 5248, 7628, 10496, 15256, 30512, 61024, 78187, 122048, 156374, 244096, 312748, 488192, 625496, 1250992, 2501984, 5003968, 10007936, 20015872]

約数ペア:

[(1, 20015872), (2, 10007936), (4, 5003968), (8, 2501984), (16, 1250992), (32, 625496), (41, 488192), (64, 312748), (82, 244096), (128, 156374), (164, 122048), (256, 78187), (328, 61024), (656, 30512), (1312, 15256), (1907, 10496), (2624, 7628), (3814, 5248)]