18895340

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 22231060

約数列:

[1, 2, 4, 5, 10, 20, 59, 67, 118, 134, 236, 239, 268, 295, 335, 478, 590, 670, 956, 1180, 1195, 1340, 2390, 3953, 4780, 7906, 14101, 15812, 16013, 19765, 28202, 32026, 39530, 56404, 64052, 70505, 79060, 80065, 141010, 160130, 282020, 320260, 944767, 1889534, 3779068, 4723835, 9447670, 18895340]

約数ペア:

[(1, 18895340), (2, 9447670), (4, 4723835), (5, 3779068), (10, 1889534), (20, 944767), (59, 320260), (67, 282020), (118, 160130), (134, 141010), (236, 80065), (239, 79060), (268, 70505), (295, 64052), (335, 56404), (478, 39530), (590, 32026), (670, 28202), (956, 19765), (1180, 16013), (1195, 15812), (1340, 14101), (2390, 7906), (3953, 4780)]