678742840

素因数分解:

$2^3\times 5^1\times {\mathrm{1367}}^1\times {\mathrm{12413}}^1$

素因数の和:13791

約数の個数: 32

約数和(自身を含む): 1528411680

約数和(自身を除く): 849668840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1367, 2734, 5468, 6835, 10936, 12413, 13670, 24826, 27340, 49652, 54680, 62065, 99304, 124130, 248260, 496520, 16968571, 33937142, 67874284, 84842855, 135748568, 169685710, 339371420, 678742840]

約数ペア:

[(1, 678742840), (2, 339371420), (4, 169685710), (5, 135748568), (8, 84842855), (10, 67874284), (20, 33937142), (40, 16968571), (1367, 496520), (2734, 248260), (5468, 124130), (6835, 99304), (10936, 62065), (12413, 54680), (13670, 49652), (24826, 27340)]