30988540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1783}}^1$

素因数の和:1882

約数の個数: 48

約数和(自身を含む): 71930880

約数和(自身を除く): 40942340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 1783, 3476, 3566, 4345, 7132, 8690, 8915, 17380, 17830, 19613, 35660, 39226, 78452, 98065, 140857, 196130, 281714, 392260, 563428, 704285, 1408570, 1549427, 2817140, 3098854, 6197708, 7747135, 15494270, 30988540]

約数ペア:

[(1, 30988540), (2, 15494270), (4, 7747135), (5, 6197708), (10, 3098854), (11, 2817140), (20, 1549427), (22, 1408570), (44, 704285), (55, 563428), (79, 392260), (110, 281714), (158, 196130), (220, 140857), (316, 98065), (395, 78452), (790, 39226), (869, 35660), (1580, 19613), (1738, 17830), (1783, 17380), (3476, 8915), (3566, 8690), (4345, 7132)]