80456694440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{495301}}^1$

素因数の和:495474

約数の個数: 64

約数和(自身を含む): 188294008320

約数和(自身を除く): 107837313880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 524, 620, 655, 1048, 1240, 1310, 2620, 4061, 5240, 8122, 16244, 20305, 32488, 40610, 81220, 162440, 495301, 990602, 1981204, 2476505, 3962408, 4953010, 9906020, 15354331, 19812040, 30708662, 61417324, 64884431, 76771655, 122834648, 129768862, 153543310, 259537724, 307086620, 324422155, 519075448, 614173240, 648844310, 1297688620, 2011417361, 2595377240, 4022834722, 8045669444, 10057086805, 16091338888, 20114173610, 40228347220, 80456694440]

約数ペア:

[(1, 80456694440), (2, 40228347220), (4, 20114173610), (5, 16091338888), (8, 10057086805), (10, 8045669444), (20, 4022834722), (31, 2595377240), (40, 2011417361), (62, 1297688620), (124, 648844310), (131, 614173240), (155, 519075448), (248, 324422155), (262, 307086620), (310, 259537724), (524, 153543310), (620, 129768862), (655, 122834648), (1048, 76771655), (1240, 64884431), (1310, 61417324), (2620, 30708662), (4061, 19812040), (5240, 15354331), (8122, 9906020), (16244, 4953010), (20305, 3962408), (32488, 2476505), (40610, 1981204), (81220, 990602), (162440, 495301)]