23207960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 54362880

約数和(自身を除く): 31154920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 103, 131, 172, 206, 215, 262, 344, 412, 430, 515, 524, 655, 824, 860, 1030, 1048, 1310, 1720, 2060, 2620, 4120, 4429, 5240, 5633, 8858, 11266, 13493, 17716, 22145, 22532, 26986, 28165, 35432, 44290, 45064, 53972, 56330, 67465, 88580, 107944, 112660, 134930, 177160, 225320, 269860, 539720, 580199, 1160398, 2320796, 2900995, 4641592, 5801990, 11603980, 23207960]

約数ペア:

[(1, 23207960), (2, 11603980), (4, 5801990), (5, 4641592), (8, 2900995), (10, 2320796), (20, 1160398), (40, 580199), (43, 539720), (86, 269860), (103, 225320), (131, 177160), (172, 134930), (206, 112660), (215, 107944), (262, 88580), (344, 67465), (412, 56330), (430, 53972), (515, 45064), (524, 44290), (655, 35432), (824, 28165), (860, 26986), (1030, 22532), (1048, 22145), (1310, 17716), (1720, 13493), (2060, 11266), (2620, 8858), (4120, 5633), (4429, 5240)]