20120828

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{331}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 43728384

約数和(自身を除く): 23607556

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 167, 182, 331, 334, 364, 662, 668, 1169, 1324, 2171, 2317, 2338, 4303, 4342, 4634, 4676, 8606, 8684, 9268, 15197, 17212, 30121, 30394, 55277, 60242, 60788, 110554, 120484, 221108, 386939, 718601, 773878, 1437202, 1547756, 2874404, 5030207, 10060414, 20120828]

約数ペア:

[(1, 20120828), (2, 10060414), (4, 5030207), (7, 2874404), (13, 1547756), (14, 1437202), (26, 773878), (28, 718601), (52, 386939), (91, 221108), (167, 120484), (182, 110554), (331, 60788), (334, 60242), (364, 55277), (662, 30394), (668, 30121), (1169, 17212), (1324, 15197), (2171, 9268), (2317, 8684), (2338, 8606), (4303, 4676), (4342, 4634)]