215983320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{257123}}^1$

素因数の和:257144

約数の個数: 64

約数和(自身を含む): 740517120

約数和(自身を除く): 524533800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 257123, 514246, 771369, 1028492, 1285615, 1542738, 1799861, 2056984, 2571230, 3085476, 3599722, 3856845, 5142460, 5399583, 6170952, 7199444, 7713690, 8999305, 10284920, 10799166, 14398888, 15427380, 17998610, 21598332, 26997915, 30854760, 35997220, 43196664, 53995830, 71994440, 107991660, 215983320]

約数ペア:

[(1, 215983320), (2, 107991660), (3, 71994440), (4, 53995830), (5, 43196664), (6, 35997220), (7, 30854760), (8, 26997915), (10, 21598332), (12, 17998610), (14, 15427380), (15, 14398888), (20, 10799166), (21, 10284920), (24, 8999305), (28, 7713690), (30, 7199444), (35, 6170952), (40, 5399583), (42, 5142460), (56, 3856845), (60, 3599722), (70, 3085476), (84, 2571230), (105, 2056984), (120, 1799861), (140, 1542738), (168, 1285615), (210, 1028492), (280, 771369), (420, 514246), (840, 257123)]