618432020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{23197}}^1$

素因数の和:23280

約数の個数: 48

約数和(自身を含む): 1371836928

約数和(自身を除く): 753404908

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 620, 860, 1333, 2666, 5332, 6665, 13330, 23197, 26660, 46394, 92788, 115985, 231970, 463940, 719107, 997471, 1438214, 1994942, 2876428, 3595535, 3989884, 4987355, 7191070, 9974710, 14382140, 19949420, 30921601, 61843202, 123686404, 154608005, 309216010, 618432020]

約数ペア:

[(1, 618432020), (2, 309216010), (4, 154608005), (5, 123686404), (10, 61843202), (20, 30921601), (31, 19949420), (43, 14382140), (62, 9974710), (86, 7191070), (124, 4987355), (155, 3989884), (172, 3595535), (215, 2876428), (310, 1994942), (430, 1438214), (620, 997471), (860, 719107), (1333, 463940), (2666, 231970), (5332, 115985), (6665, 92788), (13330, 46394), (23197, 26660)]