13331720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 32123520

約数和(自身を除く): 18791800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 337, 344, 430, 460, 674, 860, 920, 989, 1348, 1685, 1720, 1978, 2696, 3370, 3956, 4945, 6740, 7751, 7912, 9890, 13480, 14491, 15502, 19780, 28982, 31004, 38755, 39560, 57964, 62008, 72455, 77510, 115928, 144910, 155020, 289820, 310040, 333293, 579640, 666586, 1333172, 1666465, 2666344, 3332930, 6665860, 13331720]

約数ペア:

[(1, 13331720), (2, 6665860), (4, 3332930), (5, 2666344), (8, 1666465), (10, 1333172), (20, 666586), (23, 579640), (40, 333293), (43, 310040), (46, 289820), (86, 155020), (92, 144910), (115, 115928), (172, 77510), (184, 72455), (215, 62008), (230, 57964), (337, 39560), (344, 38755), (430, 31004), (460, 28982), (674, 19780), (860, 15502), (920, 14491), (989, 13480), (1348, 9890), (1685, 7912), (1720, 7751), (1978, 6740), (2696, 4945), (3370, 3956)]