87974360

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 202625280

約数和(自身を除く): 114650920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 131, 163, 206, 262, 326, 412, 515, 524, 652, 655, 815, 824, 1030, 1048, 1304, 1310, 1630, 2060, 2620, 3260, 4120, 5240, 6520, 13493, 16789, 21353, 26986, 33578, 42706, 53972, 67156, 67465, 83945, 85412, 106765, 107944, 134312, 134930, 167890, 170824, 213530, 269860, 335780, 427060, 539720, 671560, 854120, 2199359, 4398718, 8797436, 10996795, 17594872, 21993590, 43987180, 87974360]

約数ペア:

[(1, 87974360), (2, 43987180), (4, 21993590), (5, 17594872), (8, 10996795), (10, 8797436), (20, 4398718), (40, 2199359), (103, 854120), (131, 671560), (163, 539720), (206, 427060), (262, 335780), (326, 269860), (412, 213530), (515, 170824), (524, 167890), (652, 134930), (655, 134312), (815, 107944), (824, 106765), (1030, 85412), (1048, 83945), (1304, 67465), (1310, 67156), (1630, 53972), (2060, 42706), (2620, 33578), (3260, 26986), (4120, 21353), (5240, 16789), (6520, 13493)]