289771840

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21059}}^1$

素因数の和:21119

約数の個数: 56

約数和(自身を含む): 706099680

約数和(自身を除く): 416327840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 160, 172, 215, 320, 344, 430, 688, 860, 1376, 1720, 2752, 3440, 6880, 13760, 21059, 42118, 84236, 105295, 168472, 210590, 336944, 421180, 673888, 842360, 905537, 1347776, 1684720, 1811074, 3369440, 3622148, 4527685, 6738880, 7244296, 9055370, 14488592, 18110740, 28977184, 36221480, 57954368, 72442960, 144885920, 289771840]

約数ペア:

[(1, 289771840), (2, 144885920), (4, 72442960), (5, 57954368), (8, 36221480), (10, 28977184), (16, 18110740), (20, 14488592), (32, 9055370), (40, 7244296), (43, 6738880), (64, 4527685), (80, 3622148), (86, 3369440), (160, 1811074), (172, 1684720), (215, 1347776), (320, 905537), (344, 842360), (430, 673888), (688, 421180), (860, 336944), (1376, 210590), (1720, 168472), (2752, 105295), (3440, 84236), (6880, 42118), (13760, 21059)]