315079280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2137}}^1$

素因数の和:2266

約数の個数: 80

約数和(自身を含む): 779429280

約数和(自身を除く): 464350000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 97, 152, 190, 194, 304, 380, 388, 485, 760, 776, 970, 1520, 1552, 1843, 1940, 2137, 3686, 3880, 4274, 7372, 7760, 8548, 9215, 10685, 14744, 17096, 18430, 21370, 29488, 34192, 36860, 40603, 42740, 73720, 81206, 85480, 147440, 162412, 170960, 203015, 207289, 324824, 406030, 414578, 649648, 812060, 829156, 1036445, 1624120, 1658312, 2072890, 3248240, 3316624, 3938491, 4145780, 7876982, 8291560, 15753964, 16583120, 19692455, 31507928, 39384910, 63015856, 78769820, 157539640, 315079280]

約数ペア:

[(1, 315079280), (2, 157539640), (4, 78769820), (5, 63015856), (8, 39384910), (10, 31507928), (16, 19692455), (19, 16583120), (20, 15753964), (38, 8291560), (40, 7876982), (76, 4145780), (80, 3938491), (95, 3316624), (97, 3248240), (152, 2072890), (190, 1658312), (194, 1624120), (304, 1036445), (380, 829156), (388, 812060), (485, 649648), (760, 414578), (776, 406030), (970, 324824), (1520, 207289), (1552, 203015), (1843, 170960), (1940, 162412), (2137, 147440), (3686, 85480), (3880, 81206), (4274, 73720), (7372, 42740), (7760, 40603), (8548, 36860), (9215, 34192), (10685, 29488), (14744, 21370), (17096, 18430)]