20610760

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:598

約数の個数: 64

約数和(自身を含む): 49610880

約数和(自身を除く): 29000120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 521, 860, 920, 989, 1042, 1720, 1978, 2084, 2605, 3956, 4168, 4945, 5210, 7912, 9890, 10420, 11983, 19780, 20840, 22403, 23966, 39560, 44806, 47932, 59915, 89612, 95864, 112015, 119830, 179224, 224030, 239660, 448060, 479320, 515269, 896120, 1030538, 2061076, 2576345, 4122152, 5152690, 10305380, 20610760]

約数ペア:

[(1, 20610760), (2, 10305380), (4, 5152690), (5, 4122152), (8, 2576345), (10, 2061076), (20, 1030538), (23, 896120), (40, 515269), (43, 479320), (46, 448060), (86, 239660), (92, 224030), (115, 179224), (172, 119830), (184, 112015), (215, 95864), (230, 89612), (344, 59915), (430, 47932), (460, 44806), (521, 39560), (860, 23966), (920, 22403), (989, 20840), (1042, 19780), (1720, 11983), (1978, 10420), (2084, 9890), (2605, 7912), (3956, 5210), (4168, 4945)]